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

@@ -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

@@ -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.
@@ -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