Q: Hi. I've made lots of milk paint at home, using casein precipitated from skim milk, but I've never used powdered casein. I use several recipes that I've tweaked a bit. If I were to use powdered casein, how would it translate, in regard to measurement, in my recipes? For example, if my recipe calls for 20 grams of moist casein, how much of the powdered casein would I need to use in place of moist casein in that recipe? Would I use twice the weight, or maybe closer to three times the weight I use of moist casein? I'm curious because I assume powdered casein is more economical to use, though I am wondering if it's binding properties are equal. Oh, one last question? Does Sinopia's powdered casein have a lecithin added to aid in mixing, like for example in micellar casein powders that body builders sometimes use as a nutritional supplement? Thank you for your help! I love your store and your willingness to help out fellow homemade paint enthusiasts.
A: We actually do not have any direct experience in making Casein from skim milk. We did, however, research how much Casein powder is gained from 1 gallon of milk and it was a minimal amount (something like 30g).
The beauty of working with the metric system, is that 1ml of water weighs weighs 1g. So maybe this will help in your explorations.
Our casein powder does not have any emulsifying additives and yields a very powerful glue strength, when used in higher concentrations.
Q: when will the casein be available? Do you still carry it?
A: Unfortunately, the casein powder is still part of the supply chain issues. Once the powder becomes available, we will announce it in our newsletter.