Groceries on the train?

From Clay Reichert:

Finally we have an answer regarding groceries and rubbermaids…………. says: Perishable food and liquids must be in hermetic containers such as hard plastic or metal coolers (no foam coolers) sealed with tape.
We will accept Rubbermaid containers to transport non-perishables (items such as bread, canned goods, cake mixes, flour, sugar etal).

Perishable goods checked baggage are carried at the owner’s risk: