[SAJ]

Ronn, acetic acid (vinegar) reacts with iron and zinc as in steel or galvanized buckets. It also fizzes up in contact with concrete or concrete containers and gives off carbon dioxide. In these cases you are losing much of the effect by neutralizing the acetic acid by dissolving the container. In the case of a concrete container very rapidly. Plastic of any kind seems like a more viable solution to me.
Vinegar reacts more quickly with rust than with bare iron, so an iron container may work ok, though it will be dissolved somewhat with each use
SAJ in NZ