Hello, we would like to use 1,3-
Propanediol (Natural) is a solvent for herbal extraction. I don't know how to use it Suppose we use 100 grams of herbs, how many grams of this substance will be needed? and how many grams of water How long must it be left for the extract to be used? and put this substance and then have to put
กันเสีย again, thank you.