Question

why pickles and sour substances are not stored in brass copper vessels

Answer 1

sour substances are cidic in nature,i.e, they have acids in them. So, when they are kept in brass or copper vessels, they react with them and form poisonous or better to say toxic elements which may prove harmful for human body. So they are not kept in metal containers.

Answer 2

Answer:

Pickles and sour substances are not stored in brass and copper vessels because they are easily reacts with the pickles since pickles contain acidic nature. So, they form easily hydrogen gas and Soluble salts by reacting with pickles which lead the pickle into a toxic material.