swim thinks to extract some cacti. he needs ph 4 for boiling and do not have a ph meter. what is the ratio between water and %5 apple vinegar to get the ph 4. swim also can reach %100 glacial acetic acid. and want to learn if preparing %5 acetic acid solution rather than using apple vinegar make too much difference ? and what is the pure sodium hydroxide ratio to put for a liter of cacti tea to get it based.

cactus alkaloids are very water soluble in plant form, why the need for acid?

there is little need to use acid in the cook phase, if anything a squeeze of a lemon or a dash of fumaric, but minimal

mew has great results without the use of such strong acidic levels