Cleaning out the cool storage room today and I came across a few small bags of dried beans purchased in 2023. They're nearing the sell-by date on both varieties, chickpeas and navy beans. Of course I wanted to know just how much longer these will be good. I had other questions, too. So I did some reading. Here's what I found out.
Does that best-by date really mean that's when the beans will no longer be edible?
Several sites I read said dried beans are still edible even after expiry. It's a best-by date. The beans are still perfectly good to cook with for 1 or more years past the best-by date when stored in the manufacturer's plastic bag.
What are the enemies of dried beans?
moisture, direct sunlight, insects, oxygen, and heat
Can dried beans be kept in long-term storage for emergencies?
Yes, but they need to be kept from their "enemies." First, a little preventative work is recommended to kill off potential insect eggs by freezing the packages for 36-48 hours or heat kill on a baking sheet in a 250 degree oven for about 20 minutes prior to storage. Next, dried beans should be kept in airtight containers, like clean and dry canning jars.
The jars do not need to be processed or heat sealed, and the lids can be previously used ones. Once in jars, or other airtight container, keep the beans in a cool and dark location. Storing in this simple manner, dried beans will last for up to 3 years past the best-by date. By the way, a 1-qt canning jar holds approximately 1 1/2 pounds of dried beans.
If you want to keep dried beans for 5 or more years, vacuum sealing is a better option, as it removes excess air from the package before sealing. Beyond vacuum sealing, various airtight containers used in conjunction with oxygen absorbers can extend the life of dried beans for a decade or longer. Finally, some folks store their dried beans in the freezer. Many sources indicate that dried beans will keep indefinitely in a freezer.
Do dried beans lose nutrients when stored long term?
Yes and no. The vitamins in the beans will degrade gradually. However, the protein, calories, and minerals will remain intact.
How can I know if my dried beans have gone bad?
Smell and/or appearance will be the tell. If the dried beans have an off odor, beyond their usual dried bean-y smell, or if the beans have noticeable mold or fuzz on them, it's best to compost these beans. It's possible beans with a higher fat content can go rancid over time. And if moisture has become an issue where the beans are stored, and they're not in an airtight container, that's when mold can develop.
I went the simple route and stored my beans in clean canning jars, tucked into a cool and dark corner of our cool storage room. This room is on the north side of the house, and even in summer, this spot remains fairly cool. This is where I store our grains, vegetable oil, and canned goods. If nothing else comes of moving the found dried beans to canning jars, at least I'm now aware of how much I have and am making plans to use them up. I see some hummus in our very near future.
How about you? Have you ever had a problem with cooking old dried beans? How old would you think is too old for dried beans?