Curd is not kept in copper and brass , why?

“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.”

Your question is not clear but if you can explain yourself i would be glad to .  just trying to : ))

It could possibly be beneficial if the experiment is successful.