docs/files/presentation.md

+#Final presentation
+
+##Slides
+
+<iframe src="https://docs.google.com/presentation/d/e/2PACX-1vTMDmGl83b2ylicuzsJ4lrWZ8cewbQzKEd9uZ7zYR9AhnFOyPg1-3dAETjhSaTDI-_zQ_o1cH8GDP-e/embed?start=false&loop=false&delayms=60000" frameborder="0" width="600" height="366" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe>
+
+##Product video
+
+<iframe width="560" height="315" src="https://www.youtube.com/embed/FIOPSd76PNg?controls=0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

docs/files/recipes/agarcomposite.md

@@ -114,7 +114,7 @@ Not sure
 
 ###Variations
 
-- Substitute part of the water with a dye
+- Substitute part of the water with a (neutral to alkaline) dye. The PH of the cooked agar mixture is about PH 9-10. Making the mixture very acidic changes the structure of the polysaccharide, resulting in a weaker more brittle bioplastic.
 - Try or design different molds to create big spatial structures and objects
 - Use different fibres as enforcement. Other *natural* fibres may be continuous/discontinuous ([long fibres like yarns](https://class.textile-academy.org/2020/loes.bogers/files/recipes/alginatenet/), strings or hair. Or they can be short fibres that are chopped like wood chips, [egg shells](https://class.textile-academy.org/2020/loes.bogers/files/recipes/biolino/), leather leftovers), particles or even braided and woven fibres like the cotton used here. Collagen, cellulose, silks, and chitin are the types found in nature. 
 - Use a different matrix: biomaterials like beeswax or animal glue for example are thermoformable matrices (the ones you can form with the help of heat). And setting matrixes like bio epoxies, white glue (made of flour), alginate, gelatin and starch-based plastics, mycelium and kombucha.   
@@ -157,7 +157,7 @@ Sustainability concerns are largely determined by the choice of constituent mate
 - Vegan: yes
 - Made of by-products or waste: no
 - Biocompostable final product:  yes
-- Re-use: not sure for a composite, agar by itself can be melted by reheating it with a little water
+- Re-use: the plain agar recipe without additional additives can be melted by reheating it (add a splash of water if necessary), reusing a composite depends on the materials used. This composite can be formed and reformed over and over.
 
 Needs further research?:  Not sure
 
@@ -199,7 +199,7 @@ Should not be recycled as part of PET-plastics waste: this causes contamination
 
 **Environmental conditions**
 
-- Humidity:  not sure
+- Humidity:  40-50%
 - Outside temp:  5-11 degrees Celcius
 - Room temp:  18 – 22 degrees Celcius
 - PH tap water:  7-8

docs/files/recipes/agarfoil.md

@@ -81,9 +81,9 @@ Before processing/drying/curing: approx. 200 ml
 
 Allow the foil to dry for a week for best results (or 3 days minimum). If you don't peel it off the surface it will shrink much less in width/length.
 
-- Mold depth: 					1.5-2.5 mm
-- Shrinkage thickness       30-50 %
-- Shrinkage width/length    10-20 %
+- Mold depth: 				1.5-2.5 mm
+- Shrinkage thickness       40-60 %
+- Shrinkage width/length    5-10% %
 
 **Shrinkage and deformation control**
 
@@ -115,7 +115,7 @@ Not sure
 
 ###Variations
 
-- Substitute part of the water with a dye
+- Substitute part of the water with a (neutral to alkaline) dye. The PH of the cooked agar mixture is about PH 9-10. Making the mixture very acidic changes the structure of the polysaccharide, resulting in a weaker more brittle bioplastic.
 - Add less glycerine for a more rigid, stiff foil 
 - Add fillers (debris, coffee waste) or fibres to make a composite, see also the [agar composite recipe](./agarcomposite.md)). 
 
@@ -153,7 +153,7 @@ In cooking, agar is known as the vegan and halal alternative to animal-based gel
 - Vegan: yes
 - Made of by-products or waste: no
 - Biocompostable final product:  yes, in 2-4 months
-- Re-use: yes, the agar can be melted by reheating it with a little water
+- Re-use: yes, the agar can be melted by reheating it (with a little water if necessary)
 
 Needs further research?:  Not sure
 
@@ -195,7 +195,7 @@ Should not be recycled as part of PET-plastics waste: this causes contamination
 
 **Environmental conditions**
 
-- Humidity:  not sure
+- Humidity:  40-50%
 - Outside temp:  5-11 degrees Celcius
 - Room temp:  18 – 22 degrees Celcius
 - PH tap water:  7-8

docs/files/recipes/alginatefoil.md

@@ -78,7 +78,7 @@ Approx. 100 ml of calcium chloride 10% solution that can be used for any alginat
 ###Drying/curing/growth process
 
 - Mold depth:  				N/A
-- Shrinkage thickness:      20-30 %
+- Shrinkage thickness:      40-60 %
 - Shrinkage width/length:   10-20 %
 
 **Shrinkage and deformation control**
@@ -195,6 +195,7 @@ Should not be recycled as part of PET-plastics waste: this causes contamination
 
 **Environmental conditions**
 
+- Humidity:  40-50%
 - Outside temp:  5-11 degrees Celcius
 - Room temp:  18 – 22 degrees Celcius
 - PH tap water:  7-8

docs/files/recipes/alginatenet.md

@@ -219,6 +219,7 @@ Should not be recycled as part of PET-plastics waste: this causes contamination
 
 **Environmental conditions**
 
+- Humidity:  40-50%
 - Outside temp:  5-11 degrees Celcius
 - Room temp:  18 – 22 degrees Celcius
 - PH tap water:  7-8

docs/files/recipes/alginatestring.md

@@ -72,7 +72,7 @@ Approx. 300 ml of calcium chloride 10% solution that can be used for any alginat
 	- Weigh your ingredients for the alginate plastic (alginate, glycerine, water, sunflower oil). Optional: use a diluted natural dye instead of water in the same amount for a colored plastic.
 	- Put the oil, alginate and glycerine in a blender and add a dash of the water. Blend into a thick and homogenous paste. Then add the rest of the water and blend again (this is to avoid lumps).
 	- Leave the mixture overnight to allow the bubbles to come to the surface and pop.
-	- Make the calcium chloride solution by dissolving 10 gr in 100 gr hot water. Put some in a spray bottle and store the rest in a jar: this is your calcium chloride bath.
+	- Make the calcium chloride solution by dissolving 30 gr in 300 gr hot water. Put some in a spray bottle and store the rest in a jar: this is your calcium chloride bath.
 
 1. **Extruding**
 	- prepare the work space by putting out your calcium chloride bath and spray, an empty jar to wrap the string around, a syringe and your alginate mixture.
@@ -89,7 +89,7 @@ Approx. 300 ml of calcium chloride 10% solution that can be used for any alginat
 ###Drying/curing/growth process
 
 - Syringe diameter:  		2-5 mm
-- Shrinkage thickness:      20-30 %
+- Shrinkage thickness:      30-60 %
 - Shrinkage width/length:   N/A
 
 **Shrinkage and deformation control**
@@ -214,6 +214,7 @@ Should not be recycled as part of PET-plastics waste: this causes contamination
 
 **Environmental conditions**
 
+- Humidity:  40-50%
 - Outside temp:  5-11 degrees Celcius
 - Room temp:  18 – 22 degrees Celcius
 - PH tap water:  7-8

docs/files/recipes/alumcrystalsilk.md

@@ -4,7 +4,7 @@
 
 ##GENERAL INFORMATION
 
-Alum crystals - that have triangular facets - grown on a silk substrate. The technique used here is called *precipitation from a solution*. Alum crystals are clear and faceted with great definition so they are often compared to diamonds. However these can get so big that it is not really credible that they are diamonds, but they play with light in similar ways.
+Alum crystals - that have triangular facets - grown on a silk substrate. The technique used here is called *crystallization*. Alum crystals are clear and faceted with great definition so they are often compared to diamonds. However these can get so big that it is not really credible that they are diamonds, but they play with light in similar ways.
 
 **Physical form**
 
@@ -30,7 +30,7 @@ Final form achieved after: 1 day
 
 ###Ingredients
 
-* **Alum powder (also: potassium aluminium sulfate, potash alum, or  - 125 g** (plus some more just in case)
+* **Alum powder - 125 g** (potassium aluminium sulfate dodecahydrate), plus some more just in case
 	* we will try to reorganize these molecules into crystals. 
 * **Water - 400 ml/gr**
 	* To dissolve the alum powder and reorganize into a crystal 
@@ -165,7 +165,7 @@ Unlike diamonds, borax and alum crystals can be regrown into different constella
 - Renewable ingredients: no
 - Vegan: yes
 - Made of by-products or waste:  no
-- Biocompostable final product:  yes
+- Biocompostable final product:  no
 - Reuse: yes, dissolve and regrow in hot water
 
 Needs further research?:  yes, local producers seem reluctant to share sourcing information about these products. It is unclear where it comes from, whether it is natural or synthetic and what kind of mining practices are involved. 
@@ -207,6 +207,7 @@ Needs further research?:  yes, local producers seem reluctant to share sourcing
 
 **Environmental conditions**
 
+- Humidity:  40-50%
 - Outside temp:  5-11 degrees Celcius
 - Room temp:  18 – 22 degrees Celcius
 - PH tap water:  7-8

docs/files/recipes/bacterialdye.md

@@ -225,7 +225,7 @@ Serratia Marcescens has been associated with some forms of biological warfare. S
 - Renewable ingredients: yes
 - Vegan: yes
 - Made of by-products or waste:  no
-- Biocompostable final product:  yes
+- Biocompostable final product: yes, (rip silk to shreds for home composting for more points of contact).
 - Re-use: the inoculated bacteria strain can be used and grown again and again endlessly if it is kept alive or stored in the freezer on a glycerine stock. The pigment may be continually harvested to store as an ink or dye. 
 
 Needs further research?:  not sure
@@ -251,7 +251,7 @@ Needs further research?:  not sure
 
 **Environmental conditions**
 
-- Humidity:  not sure
+- Humidity:  40-50%
 - Outside temp:  5-11 degrees Celcius
 - Room temp:  18 – 22 degrees Celcius
 - PH tap water:  7-8

docs/files/recipes/bananaclay.md

@@ -2,15 +2,16 @@
 
 <iframe width="560" height="315" src="https://www.youtube.com/embed/96nT6wQYAoI" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
 
+
 ##GENERAL INFORMATION
 
-A fibrous, clay-like material made from banana peels. Although technically this would be considered a polymeer, the look and feel of this material is clay like and has a rough surface: like a clay with fibres added to it. It smells very strong during cooking, much less after drying. It smells and feels a little similar to rubber, maybe slightly earthier. 
+A fibrous, clay-like material made from banana peels. Although technically this might be considered a polymeer, the look and feel of this material is clay like and has a rough surface: like a clay with fibres added to it. It smells very strong during cooking, much less after drying. It smells and feels a little similar to rubber, maybe slightly earthier. 
 
 **Physical form**
 
 Surfaces 
 
-Color without additives: dark brown with lighter strands of fibre
+Color without additives: dark brown
 
 **Fabrication time**
 
@@ -30,9 +31,9 @@ Final form achieved after: 1 week
 
 ###Ingredients
 
-* **banana peels - 7 pcs** mush scraped out, stems chopped off, you can dry them while collecting. Once boiled they get sticky. The starch is the polymer, the fibres give strength to the material. 
+* **banana peels - 7 pcs** stems chopped off, you can dry them while collectinga batch. Once boiled they get sticky. The starch is the polymer, the fibres give strength to the material. 
 * **white vinegar - 50 ml**
-* **1 tbsp soda ash** - to rinse and break down the banana peel
+* **1 tbsp soda ash** (sodium carbonate Na2CO3), to rinse and break down the banana peel
 * **white vinegar (part two) - 30 ml**
 * **glycerine - 15 gr** plasticizer (to make it more flexible)
 
@@ -58,34 +59,37 @@ Approx. 75 grams (when wet)
 ###Method
 
 1. **Preparing the banana peels**
-	- Remove the pulp if you haven't done so, and cut off the stems, they're very hard to puree.
-	- Cut the peels into smaller pieces
+	- Cut off the stems, they're hard to puree as finely as the peel
+	- Cut the peels into smaller pieces (you can also use them as a whole, this will be harder to puree but give you a rougher finish with visible fibres)
 	- Boil in water with 50 ml vinegar and soda ash for about 30 minutes or until totally soft. The smell will be very strong and the banana peels will be very sticky. 
 
 1. **Puree and rest**	
+	- strain the banana peels but keep some of the liquid. 
+	- puree them in a blender with a bit of of the cooking liquid
 	- put the puree in a bowl of cold water, add 30 ml of vinegar and leave to soak for 2 hours. 
 
 1. **Straining**
 	- strain the puree in a strainer, puree again if it's still very rough
 	- then put in a cheesecloth or towel and press the majority of the water out.
 	- mix in the glycerine
-	- put it on a surface and flatten it (with a rolling pin, or with your hands). Keep it pressed under heavy objects (like books) for a couple hours. 
+	- put it on a surface and flatten it (with a rolling pin, or with your hands). 
 
 1. **Baking the clay**
-	- then put the slab in the oven for 30 mins at 130 degrees Celcius
+	- put the clay in the oven for 30 mins at 130 degrees Celcius
 
 1. **Air drying the slab (min. 3 days)**
-	- Leave to air dry for 3 at least 3 days, alternate drying and pressing with a stack of books.
+	- Keep it pressed under heavy objects (like books) for a couple hours or overnight, right after the oven time 
+	- Then leave to air dry for at least 3 days, alternate drying and pressing with a stack of books every few hours
 	- Trim fraying edges with scissors before the slab is completely dry and hard. 
 
 
 ###Drying/curing/growth process
 
-The air drying phase of at least three days is crucial here. The slab will still be very moist after the oven time. It will be fragile when you take it out but gets a lot stronger as it air dries. 
+The pressing after oven time and air drying phase of at least three days is crucial here. The slab will still be very moist after the oven time. It will be fragile when you take it out but gets a lot stronger as it air dries. 
 
 - Mold depth (surfaces and solids) or diameter (strings):  5 mm
-- Shrinkage thickness       20-30 %
-- Shrinkage width/length     0-10 %
+- Shrinkage thickness       30-50 %
+- Shrinkage width/length    20-30 %
 
 **Shrinkage and deformation control**
 
@@ -119,6 +123,25 @@ Not sure, the function of the vinegar and soda ash is not entirely clear and cou
 ![](../../images/bananaclay5.jpg)*The top after pressing and baking, Loes Bogers, 2020*
 ![](../../images/bananaclay7.jpg)*The bottom after pressing and baking, Loes Bogers, 2020*
 
+**For reference**
+
+This is what the clay looks like if you do chop the banana peels into pieces before boiling: much finer, no visible fibres. 
+
+![](../../images/bananav2_0.JPG)*Chopped peels boiling, Loes Bogers, 2020*
+
+![](../../images/bananav21.jpg)*Squeezing the liquid out of the paste after soaking, Loes Bogers, 2020*
+
+![](../../images/bananav22.jpg)*Clay where the banana peels have been chopped before boiling, Loes Bogers, 2020*
+
+![](../../images/bananav25.jpg)*Clay where the banana peels have been chopped before boiling, Loes Bogers, 2020*
+
+![](../../images/bananav26.jpg)*Clay where the banana peels have been chopped before boiling, Loes Bogers, 2020*
+
+![](../../images/bananav210.jpg)*Clay where the banana peels have been chopped before boiling, Loes Bogers, 2020*
+
+![](../../images/bananav214.jpg)*Clay where the banana peels have been chopped before boiling, Loes Bogers, 2020*
+
+
 ###Variations
 
 - Use a 3D mould for to make 3D objects
@@ -207,7 +230,7 @@ Should not be recycled as part of PET-plastics waste: this causes contamination
 
 **Environmental conditions**
 
-- Humidity:  not sure
+- Humidity:  40-50%
 - Outside temp:  11-15 degrees Celcius
 - Room temp:  18-22 degrees Celcius
 - PH tap water:  7-8
@@ -218,11 +241,13 @@ Has recipe been validated? Not yet.
 
 **Images of the final sample**
 
-![](../../images/finalpics-188.jpg)*Banana peel clay, Loes Bogers, 2020*
+![](../../images/finalpics-188.jpg)*Banana peel clay (not cut before cooking), Loes Bogers, 2020*
+
+![](../../images/finalpics-189.jpg)*Banana peel clay (not cut before cooking), Loes Bogers, 2020*
 
-![](../../images/finalpics-189.jpg)*Banana peel clay, Loes Bogers, 2020*
+![](../../images/finalpics-190.jpg)*Banana peel clay (not cut before cooking), Loes Bogers, 2020*
 
-![](../../images/finalpics-190.jpg)*Banana peel clay, Loes Bogers, 2020*
+![](../../images/finalpics-196.jpg)*Banana peel clay (cut before cooking), much finer texture, visible no fibres, Loes Bogers, 2020*
 
 
 ##REFERENCES

docs/files/recipes/biofoam.md

@@ -85,7 +85,7 @@ Peel it off the mold after 48-72 hours. The foam should not feel cold to the tou
 
 - Mold depth:  3 mm
 - Shrinkage thickness:       30-50 %
-- Shrinkage width/length:    0-10 %
+- Shrinkage width/length:    5-10 %
 
 **Shrinkage and deformation control**
 
@@ -176,10 +176,10 @@ Using renewable ingredients is not by definition petrol-free. Imagine they have
 - Renewable ingredients: yes
 - Vegan: no
 - Made of by-products or waste:  no
-- Biocompostable final product:  yes
+- Biocompostable final product:  yes, but only professionally (home composting of animal-based materials is not allowed in the EU)
 - Re-use: melt with heat and a splash of water, and recast
 
-Gelatine-based bioplastics can be recasted by melting them in a pot with some water. Should not be recycled as part of PET-plastics waste: this causes contamination of the waste stream. Compost bioplastics in a warm environment with sufficient airflow.
+Gelatine-based bioplastics can be recasted by melting them in a pot with some water. Should not be recycled as part of PET-plastics waste: this causes contamination of the waste stream. 
 
 Needs further research?:  not sure
 
@@ -219,7 +219,7 @@ Needs further research?:  not sure
 
 **Environmental conditions**
 
-- Humidity:  not sure
+- Humidity:  40-50%
 - Outside temp:  5-11 degrees Celcius
 - Room temp:  18 – 22 degrees Celcius
 - PH tap water:  7-8
@@ -230,7 +230,7 @@ Has recipe been validated? Yes, by Cecilia Raspanti, TextileLab, Waag Amsterdam,
 
 **Images of the final sample**
 
-![](../../images/finalpics-16_foam.jpg)*Biofoam (gelatin-based), Loes Bogers, 2020*
+![](../../images/finalpics-16_foam_GOOD.jpg)*Biofoam (gelatin-based), Loes Bogers, 2020*
 
 ![](../../images/finalpics-17_foam.jpg)*Biofoam (gelatin-based), Loes Bogers, 2020*
 

docs/files/recipes/biofoilextraflexible.md

@@ -70,6 +70,7 @@ Approx. 200 ml before drying/processng
 
 	- 	Simmer and slowly stir the mixture between 60-80 degrees celcius for 20 minutes. I turn it lower when I get bubbles. You don't want the liquid to move, don't boil it.
 	-  Longer cooking time allows more water to evaporate. You will get a thicker, more syruppy liquid that spreads slower: resulting in a thicker sheet. 
+	-  Optional: if you have access to one: use a **vibrating table** or a **vacuum chamber** to allow bubbles to come to the surface and pop, so you don't have bubbles in your plastic. 
 
 1. **Casting**
 
@@ -84,7 +85,7 @@ Approx. 200 ml before drying/processng
 Peel it off the mold after 48-72 hours (enjoy the sound it makes!)
 - Mold depth:  N/A
 - Shrinkage thickness:       30-50 %
-- Shrinkage width/length:    0-10 %
+- Shrinkage width/length:    5-10 %
 
 **Shrinkage and deformation control**
 
@@ -208,7 +209,7 @@ Gelatine-based bioplastics can be recasted by melting them in a pot with some wa
 
 **Environmental conditions**
 
-- Humidity:  not sure
+- Humidity:  40-50%
 - Outside temp:  5-11 degrees Celcius
 - Room temp:  18 – 22 degrees Celcius
 - PH tap water:  7-8

docs/files/recipes/biolino.md

-#BIOLINOLEUM
+# BIOLINOLEUM
 
 <iframe width="560" height="315" src="https://www.youtube.com/embed/cZIIQKz5wYI" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
 
@@ -143,7 +143,7 @@ In short: not all plastics are petrol-based. Henry Ford experimented with plasti
 
 **Needs further research?**   Not sure
 
-### References this recipe draws from
+###Key sources
 
 - **Bioresin (gelatin) Recipe** by Cecilia Raspanti (TextileLab, Waag), Fabricademy Class "Biofabricating Materials", 2017-2019, [link](https://class.textile-academy.org/classes/week05A/).
 - **The Bioplastics Cookbook: A Catalogue of Bioplastics Recipes** by Margaret Dunne for Fabtextiles, 2018, [link](https://issuu.com/nat_arc/docs/bioplastic_cook_book_3) 
@@ -167,12 +167,12 @@ Using renewable ingredients is not by definition petrol-free. Imagine they have
 - Renewable ingredients: yes
 - Vegan: no
 - Made of by-products or waste:  partially (only the egg shell filler)
-- Biocompostable final product:  yes
+- Biocompostable final product:  yes, but only professionally (home composting of animal-based materials is not allowed in the EU)
 - Reuse: needs further research
 
 Needs further research?:  can this be remelted and reused?
 
-Gelatine-based bioplastics can be recasted by melting them in a pot with some water (but plastics with additives and fillers might not be reusable). Should not be recycled as part of PET-plastics waste: this causes contamination of the waste stream. Compost bioplastics in a warm environment with sufficient airflow.
+Gelatine-based bioplastics can be recasted by melting them in a pot with some water (but plastics with additives and fillers might not be reusable). Should not be recycled as part of PET-plastics waste: this causes contamination of the waste stream. 
 
 ##PROPERTIES
 
@@ -210,6 +210,7 @@ Gelatine-based bioplastics can be recasted by melting them in a pot with some wa
 
 **Environmental conditions**
 
+- Humidity:  40-50%
 - Outside temp:  5-11 degrees Celcius
 - Room temp:  18 – 22 degrees Celcius
 - PH tap water:  7-8

docs/files/recipes/bioresin.md

@@ -20,7 +20,7 @@ Processing time: 5-10 days
 
 Need attention: None, just leave it to dry as long as is feasible with lots of airflow.
 
-Final form achieved after: 10 days
+Final form achieved after: 14 days
 
 **Estimated cost (consumables)**
 
@@ -68,7 +68,7 @@ Approx. 300 ml (make sure to evaporate a lot of water during cooking time)
 1. **Cooking the ingredients**
 
 	- 	Simmer and slowly stir the mixture between 60-80 degrees celcius for at least 20 minutes or up to an hour. Turn it lower when bubbles appear: you don't want the liquid to move, don't boil it. 
-	-  Longer cooking time allows more water to evaporate. You will get a thicker liquid. To cast larger volumes and solids with this recipe, evaporate a lot of water, until it's very thick. Sometimes it's worth reheating and melting scraps, they've already dissipated a lot of water and result in nice castings.
+	-  Longer cooking time allows more water to evaporate and will dramatically reduce shrinkage of the casted object. You will get a thicker liquid. To cast larger volumes and solids with this recipe, evaporate a lot of water, until it's very very thick. Sometimes it's worth reheating and melting scraps, they've already dissipated a lot of water and result in nice castings.
 	-  If froth appears on top of your liquid and doesn't go away, you can use a coffee filter to absorb it by covering the surface with it and then taking it off. In cooking this is called a *cartouche*, you can also make one from kitchen paper. Take a round coffee filter that fits into your pot. Absorb additional froth using some kitchen paper. 
 	
 1. **Casting**
@@ -83,12 +83,12 @@ Approx. 300 ml (make sure to evaporate a lot of water during cooking time)
 ###Drying/curing/growth process
 
 - Mold depth:  				 7 cm (filled up until 2.5cm high)
-- Shrinkage thickness:      10-20 %
-- Shrinkage width/length:   10-20 %
+- Shrinkage thickness:      5-15 %
+- Shrinkage width/length:   5-15 %
 
 **Shrinkage and deformation control**
 
-Letting it dry up to ten days to get to the final form. It will be flexible at first but will slowly harden until its totally rigid. 
+Letting it dry up to 2 weeks to get to the final form. It will be flexible at first but will slowly harden until its totally rigid. 
 
 **Curing agents and release agents**
 
@@ -132,6 +132,7 @@ The resin does not cure evenly across the surface, some might be negotiated by s
 - Add **less glycerine** for a more rigid plastic
 - **Stiffeners** such as fibres, yarn or natural debris may be added for more structure and reinforcement.
 - **Fillers** such as almond or sunflower oil, can be added to prevent additional shrinkage but might affect stickyness.
+- **Re-use** your bioresin scraps and experiments. Remelting dried bioresin in a dash of water will give you an already very concentrated mixture (the water has evaporated during its drying time) that helps you cast objects that will shrink much less than "virgin" bioresin. 
 
 ##ORIGINS & REFERENCES
 
@@ -172,12 +173,12 @@ Using renewable ingredients is not by definition petrol-free. Imagine they have
 - Renewable ingredients: yes
 - Vegan: no
 - Made of by-products or waste:  no
-- Biocompostable final product:  yes
+- Biocompostable final product:  yes, but only professionally (home composting of animal-based materials is not allowed in the EU)
 - Reuse: yes, by melting and recasting
 
 Needs further research?:  not sure
 
-Gelatine-based bioplastics can be recasted by melting them in a pot with some water. Recycling them with PET plastics contaminates the waste stream. Compost bioplastics in a warm environment with sufficient airflow.
+Gelatine-based bioplastics can be recasted by melting them in a pot with some water. Do not recycle them with PET plastics, it contaminates the waste stream. 
 
 ##PROPERTIES
 
@@ -216,6 +217,7 @@ Gelatine-based bioplastics can be recasted by melting them in a pot with some wa
 
 **Environmental conditions**
 
+- Humidity:  40-50%
 - Outside temp:  5-11 degrees Celcius
 - Room temp:  18 – 22 degrees Celcius
 - PH tap water:  7-8

docs/files/recipes/biorubber.md

 # STARCH-BASED RUBBER
 
-<iframe width="560" height="315" src="https://www.youtube.com/embed/xTVABD1KlsY" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="https://www.youtube.com/embed/B1zFfDPx7t4" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
 
-**>> update video <<**
-
-A rubbery bioplastic based on gelatin and potato starch. This slab feels a bit like a rubber car tyre. It's strong but flexible and is less stiff then the gelatine-based biosilicone for example. It has a sour smell from the vinegar (this slowly fades but does not disappear).
+A rubbery bioplastic based on gelatin and potato starch. This slab feels a bit like a rubber. It's strong but flexible and is less stiff then the gelatine-based biosilicone for example. It has a sour smell from the vinegar, which slowly fades but does not disappear completely.
 
 **Physical form**
 
@@ -31,17 +29,17 @@ Final form achieved after:7 days
 
 ###Ingredients
 
-* **Gelatine powder - 50 g **
+* **Gelatine powder - 50 g**
 	* Functions as polymeer (so it becomes a solid)
-* **Potato starch - 50 g **
+* **Potato starch - 50 g**
      * Functions as the second polymeer (so it becomes a solid)
-* **Glycerine - 100 g **
+* **Glycerine - 100 g**
 	* Functions as plasticizer (makes it flexible). 
 * **Water - 100 ml/gr and a dash extra**
 	* To dissolve and mix the polymeer and plasticizer
 	* To dissolve and mix the corn starch before adding to the other liquid
-* **White vinegar - 15 g **
-	* Vinegar is almost always added to starch-based biopolymers to change the molecular structure of the starch, making it stronger and more workable.
+* **White vinegar - 15 g**
+	* Vinegar is almost always added to starch-based biopolymers to change the molecular structure of the starch, making it stronger and more workable. It helps to disrupt the molecules further, resulting in a homogenous bioplastic.
 
 ###Tools
 
@@ -94,7 +92,7 @@ Approx. 250 ml before casting
 
 **Shrinkage and deformation control**
 
-Letting it dry for a week or so to get to the final form. It will be flexible at first but will slowly harden until its totally rigid. The slab needs some attention during drying as the edges that are thinner will curl up. Trim the piece before it's completely hard. Occassionally press down the slab under a stack of books for a few hours to keep it flat. 
+Letting it dry for a week or so to get to the final form. It will be flexible at first but will slowly get more rigid. The slab needs some attention during drying as the edges that are thinner will curl up. Trim the piece before it's completely hard. Occassionally press down the slab under a stack of books for a few hours to keep it flat. 
 
 **Curing agents and release agents**
 
@@ -125,16 +123,14 @@ Not sure.
 
 ![](../../images/cornstarch4.jpg)*Stirring in the corn starch mixture, Loes Bogers, 2020*
 
-![](../../images/cornstarch5.jpg)*Finish with a custard-like thickness, Loes Bogers, 2020*
+![](../../images/cornstarch5.jpg)*Finish with viscuous liquid, like custard, Loes Bogers, 2020*
 
-![](../../images/cornstarch6.jpg)*Spread the paste with a spatula (be quick!), Loes Bogers, 2020*
+![](../../images/starch_new1.jpg)*Spread the paste with a spatula, Loes Bogers, 2020*
 
-![](../../images/cornstarch7.jpg)*The strach-based rubber curing, Loes Bogers, 2020*
+![](../../images/starch_new2.jpg)*The strach-based rubber curing, Loes Bogers, 2020*
 
 ![](../../images/cornstarch10.jpg)*Trimming the - still flexible - slab for further curing, Loes Bogers, 2020*
 
-![](../../images/cornstarch11.jpg)*Drying the slab on a roster (pressed down with books occasionally), Loes Bogers, 2020*
-
 
 ###Variations
 
@@ -143,6 +139,7 @@ Not sure.
 - Add **less glycerine** for a more rigid slab (50/50 polymers and plasticizers is considered the max)
 - Reduce amount of gelatine or leave it out altogether
 - **Stiffeners** such as fibres, yarn or natural debris may be added for more structure and reinforcement.
+- Try creating a starch-based polymer without gelatine to make this plastic vegan. 
 
 ##ORIGINS & REFERENCES
 
@@ -181,12 +178,12 @@ Using renewable ingredients is not by definition petrol-free. Imagine they have
 - Renewable ingredients: yes
 - Vegan: no
 - Made of by-products or waste:  no
-- Biocompostable final product:  yes
+- Biocompostable final product:  yes, but only professionally (home composting of animal-based materials - like gelatine - is not allowed in the EU)
 - Reuse: further research needed
 
 Needs further research?:  not sure
 
-Gelatine-based bioplastics can be recasted by melting them in a pot with some water (but plastics with additives and fillers might not be reusable). Should not be recycled as part of PET-plastics waste: this causes contamination of the waste stream. Compost bioplastics in a warm environment with sufficient airflow.
+Gelatine-based bioplastics can be recasted by melting them in a pot with some water (but plastics with additives and fillers might not be reusable). Should not be recycled as part of PET-plastics waste: this causes contamination of the waste stream.
 
 ##PROPERTIES
 
@@ -232,6 +229,13 @@ Gelatine-based bioplastics can be recasted by melting them in a pot with some wa
 
 Has recipe been validated? Yes, by Cecilia Raspanti, TextileLab, Waag Amsterdam, 16 March 2020
 
+**Environmental conditions**
+
+- Humidity:  40-50%
+- Outside temp:  5-11 degrees Celcius
+- Room temp:  18 – 22 degrees Celcius
+- PH tap water:  7-8
+
 **Images of the final sample**
 
 ![](../../images/finalpics-38.jpg)*Starch-based rubber, Loes Bogers, 2020*
@@ -254,6 +258,7 @@ incorporation of Engineering Practices**, by Richard Harris, Carla Ahrenstorff G
 - **Seaweeds can be a new source of bioplastics** by Rajendran, N, Sharanya Puppala, Sneha Raj M., Ruth Angeeleena B., and Rajam, C. in Journal of Pharmacy Research, 12 March 2012: [link](https://www.researchgate.net/publication/258495452_Seaweeds_can_be_a_new_source_for_bioplastics)
 - **Recipes for Material Activism** by Miriam Ribul, via Issuu, 2014:[link](https://issuu.com/miriamribul/docs/miriam_ribul_recipes_for_material_a).
 - **Research Book Bioplastics** by Juliette Pepin, via Issuu, 2014:[link](https://issuu.com/juliettepepin/docs/bookletbioplastic)
+- 
 
 
 

docs/files/recipes/biosilicon.md

@@ -158,12 +158,12 @@ Using renewable ingredients is not by definition petrol-free. Imagine they have
 - Renewable ingredients: yes
 - Vegan: no
 - Made of by-products or waste:  no
-- Biocompostable final product:  yes
+- Biocompostable final product:  yes, but only professionally (home composting of animal-based materials is not allowed in the EU)
 - Reuse: yes, by melting and recasting
 
 Needs further research?:  not sure
 
-Gelatine-based bioplastics can be recasted by melting them in a pot with some water (but plastics with additives and fillers might not be reusable). Should not be recycled as part of PET-plastics waste: this causes contamination of the waste stream. Compost bioplastics in a warm environment with sufficient airflow.
+Gelatine-based bioplastics can be recasted by melting them in a pot with some water (but plastics with additives and fillers might not be reusable). Should not be recycled as part of PET-plastics waste: this causes contamination of the waste stream. 
 
 ##PROPERTIES
 
@@ -210,6 +210,13 @@ Gelatine-based bioplastics can be recasted by melting them in a pot with some wa
 
 Has recipe been validated? Yes, by Cecilia Raspanti, TextileLab, Waag Amsterdam, 9 March 2020
 
+**Environmental conditions**
+
+- Humidity:  40-50%
+- Outside temp:  5-11 degrees Celcius
+- Room temp:  18 – 22 degrees Celcius
+- PH tap water:  7-8
+
 **Images of the final sample**
 
 ![](../../images/finalpics-42.jpg)*Biosilicone sample, Loes Bogers, 2020*

docs/files/recipes/cabbagedye.md

@@ -33,7 +33,7 @@ Final form achieved after: 2 hours
 * **Half a red cabbage** (also: brassica oleracea), this is the dye stuff. Try to get these as food waste
 * **water -  1000 ml/g** solvent
 * **salt - 5 g** for preservation (stabilizer)
-* * **a coffee filter** to filter the fine particles from the dye
+* **a coffee filter** to filter the fine particles from the dye
 * **PH modifiers** (see [this recipe](https://class.textile-academy.org/2020/loes.bogers/files/recipes/phmodifiers/))
 * optional: a piece of silk, or aquarel paper and a brush for testing.
 
@@ -134,8 +134,8 @@ The color purple of this dye or ink creates is quite contested. Historically, pu
 - Renewable ingredients: yes
 - Vegan: yes
 - Made of by-products or waste:  (ideally) yes
-- Biocompostable final product:  yes
-- Re-use: no
+- Biocompostable final product: yes, (rip silk to shreds for home composting).
+- Re-use: yes, silk can be redyed. 
 
 Needs further research?:  Yes
 
@@ -161,7 +161,7 @@ How often can this dye be reused? Overview of colors different PH modifiers duri
 
 **Environmental conditions**
 
-- Humidity:  not sure
+- Humidity:  40-50%
 - Outside temp:  5-11 degrees Celcius
 - Room temp:  18 – 22 degrees Celcius
 - PH tap water:  7-8

docs/files/recipes/fishskin.md

-#TANNED FISH SKIN
+# TANNED FISH SKIN
 
 <iframe width="560" height="315" src="https://www.youtube.com/embed/M7Jz0gQ61vw" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
 
@@ -40,10 +40,10 @@ Final form achieved after: 1 week
 * **Fresh uncooked fish skins**, e.g. salmon skins
 	* the amounts below are enough for 1 large fish skin
 * **Denatured alcohol 96%** - 200 ml
-	* helps to penetrate the skin
+	* stabilizer: denatures ("kills") and removes the collagen from the cells to prevent the tissue from rotting and disintegrating after drying
 	* optional: substitute part of the alcohol with a mix of alcohol and a natural alcohol-based ink)
 * **Glycerine** - 200 ml
-	* acts as an oil
+	* lubricant: softens the leather and adds flexibility
 * **Dish washing soap (eco)** - 5 ml
 
 
@@ -163,7 +163,7 @@ It is unclear if copyright rests on this publication. Further research is requir
 - Renewable ingredients: yes
 - Vegan: no
 - Made of by-products or waste:  yes
-- Biocompostable final product:  yes
+- Biocompostable final product:  yes, but only professionally (home composting of animal-based materials is not allowed in the EU)
 - Re-use: the tanning liquid can be reused
 
 Needs further research?:  Not sure
@@ -207,7 +207,7 @@ Fish skins are considered a waste product of the fishing industry and are often
 
 **Environmental conditions**
 
-- Humidity:  not sure
+- Humidity:  40-50%
 - Outside temp:  5-11 degrees Celcius
 - Room temp:  18 – 22 degrees Celcius
 - PH tap water:  7-8

docs/files/recipes/flowerpaper.md

-#PAPER AND DYE FROM WITHERED FLOWERS
+# PAPER AND DYE FROM WITHERED FLOWERS
 
 <iframe width="560" height="315" src="https://www.youtube.com/embed/dZpvG2pKwoo" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
 
@@ -34,7 +34,7 @@ Final form achieved after: 2-4 weeks
 
 * **Bouquet of withered flowers**, the ones the florist throws away
 	* Flowers will provide the cellulose and fibres to make the paper
-* **Soda ash** (carbonate soda), 15 g
+* **Soda ash** (sodium carbonate Na2CO3), 15 g
 	* To wash off dirt and grit
 * **Water**, enough to cover the dried flowers
 * **a coffee filter** to filter the fine particles from the flower dye
@@ -214,7 +214,7 @@ Needs further research
 - Renewable ingredients: yes
 - Vegan: yes
 - Made of by-products or waste:  yes
-- Biocompostable final product:  yes
+- Biocompostable final product:  yes (rip dyed silk to shreds for home composting). 
 - Re-use: yes, can be re-used in the next paper slurry (consider additives)
 
 Needs further research?:  Not sure
@@ -256,7 +256,7 @@ Needs further research?:  Not sure
 
 **Environmental conditions**
 
-- Humidity:  not sure
+- Humidity:  40-50%
 - Outside temp:  5-11 degrees Celcius
 - Room temp:  18 – 22 degrees Celcius
 - PH tap water:  7-8