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Can you oversoak beans?

I put some beans on to soak, then wasn't able to cook them when I planned to. Now they've been soaking for 48 hours. Will there be anything wrong with them? They are cannellini beans.

asked by fozziebayer over 4 years ago
10 answers 74687 views
added over 4 years ago

In my experience the beans begin to spoil if soaked that long, particularly if it is in a warm spot. Time for the smell test - first thorougly drain and rinse the beans and see how they smell. If it seems ok cook them. Most likely they will be mushy.

added over 4 years ago

I agree about giving them the smell test to see if they're going off. You might want to check your cooking time as well, test them for doneness before you usually would.

added over 4 years ago

In summer, unless you have a cool-ish kitchen, you can refrigerate beans while they soak, or use the quick soak procedure -- bring to a boil with plenty of water, then wait 2 hours. One sign that the soaking beans may be fermenting is the appearance of bubbles in the water.

added over 4 years ago

judging from the funky odor that emanated from my kitchen counter thanks to an 'oversoaked' batch of garbanzo's I'd say yes, if you see the soaking water begin to bubble, (more than a day) its oversoaked.


Anita is a vegan pastry chef & founder of Electric Blue Baking Co. in Brooklyn.

added over 4 years ago

Sometimes, if you leave them too long they will begin to sprout, at which point it is time to abort mission and possibly do something else with them, depending on what kind of beans they are! I have always wanted to try home-sprouting beans on purpose, but so far it only happens by accident ;)

What I do when I don't have time to cook beans (post soak) is drain the water, transfer the beans to a container, and stash in the freezer. Do this as close as possible to the recommended soaking time.

Then, when you're ready to cook them, just take them out of the freezer and dump directly into boiling water. You'll pick up right where you left off!

I recently started using dried beans from the local farmer's market. They are the closest thing to fresh you can get, so the soaking time is much shorter. This is good if you don't have that much time to wait. Also, lentils are great to have around b/c they require no soaking.


June is a trusted source on General Cooking.

added over 4 years ago

Partially, I think it depends upon the freshness of the beans. Some beans can take more soaking than others. At this time of year, I generally refrigerate the beans while they soak, so just in case I don't get to cook them when I originally planned, they'll be okay the next day.

One time in recent memory they sat for 3 days in the fridge, and started bubbling. I just tossed them.

added over 4 years ago

if you want the seeds to sprout instead of just tossing them away, just drain off the water, Transfer the beans into a cheesecloth & keep them covered & moist for another day. & then use the sprouts (although I've never tried cannelini bean sprouts).. The nutritious value of the beans goes up another notch when sprouted.

added over 4 years ago

I have oversoaked beans once or twice in the past, but refrigerated them in their water. They were ok after 48 hours, but I noticed their taste was slightly washed off. If they have been soaking at room temperature, it might be best to discard them. If you cook beans often and are able to afford, a pressure cooker helps when planning doesn't go as planned.

added over 4 years ago

I accidentally soaked beans for three days a few weeks ago. They were in a pot at room temperature. When I checked on them, they smelled...bad and there were bubbles all over the surface of the water. The beans had pretty much fermented. I soak my beans in the fridge now, especially since it's summer. So, smell them first, if they stink, toss them =)

added over 4 years ago

From a food-safety standpoint, beans should not be soaked for more than 4 hours at room temperature. If soaking beans overnight (the optimal amount of soaking time if you're taking that step) it should be done in the refrigerator. In the future, you may just want skip the soak (one less thing to plan ahead!) -- you can expect the cooking time to be longer, but that's it.