This would be good on the farm or homestead.   This is casein glue like the white glue we all use in school ( kind of) 1. Add vinegar to lukewarm skimmed milk so it curdles. 2. Drain the liquid component off from the solids. 3. Put solids onto a strainer to drain off excess liquid 4. In a bowl, add a base (such as sodium bicarbonate, ammonia or washing…