Question

Why pickles and curd are not stored in copper and brass utensils?

Answer 1

Pickels and curd are sour in taste . As we all know , that sour substance have acids . So pickels & curds contains acids . Now acid reacts with metals to produce harmful & toxic salts . So it may react with copper & brass utensils and produce toxic salts which will make food unedible .

Answer 2

all acids are sour in nature.

curd,is made from milk which is slightly acidic in nature(as it contains lactic acid).we know that acids react easily with metals to give salt and hydrogen gas.

when kept in copper or brass vessels,curd(and other acidic food items) reacts with copper and forms toxic compounds which may be unfit for human consumption,and may cause food poisoning.thus it is not advisable to keep curd and other acidic or sour food items in copper or brass vessels.