Question

Why should curd and sour substances not be kept in brass or copper vessels?

Answer 1

Curd and sour substances not be kept in brass or copper vessels:

• Curd and sour substances are both acids.
• Acids combine with metals to form salt and hydrogen gas.
• When sour things, such as curd, are stored in brass or copper vessels, the lactic acid in the curd reacts with the metals, causing corrosion and the creation of toxic salts that cannot be digested.
• If such compounds are stored in brass or copper vessels, the acid will react and corrode the container.
• As a result, the food may be spoiled.