don't know can use
Sodium Lactate (60% Liquid) can be used to harden the soap into a bar instead of caustic soda. and how many % must be used and must be mixed in the water before mixing into the oil or add water and oil to mix first and then add
Sodium Lactate (60% Liquid) to solidify. After doing it, how many days must it be left to use? It's like if you use baking soda, do you have to leave it for 3-4 weeks? Thank you.