basically forever. Dried beans are considered non-perishable. After two to three years, the nutritional value starts diminishing, and all vitamins will be gone after five. ... It may also help to keep your bean types separate to prevent a bad bunch from spoiling the rest.

How do you know if beans are bad?

So if you see mottled skin, dark spots or any visible traces of mold, you should toss them. No unusual smells — dried beans should not have a strong smell. If there's a rancid aroma when you open your bag of beans, this cold be a sign of molding, fermentation or pest droppings. Toss 'em!

Do beans go bad in fridge?

Open beans can be stored in the refrigerator for 3 to 4 days; while it may be tempting to store them right in the can, the USDA recommends transferring them to plastic or glass containers. Beans have a low acid content and this makes them slightly more perishable than more acidic canned foods.