Chickpeas, dried beans or borlotti beans left to soak can wait, covered, in the fridge for at most 2-3 days. Beyond that the water starts to foam and give off a sour smell.
A soak of 8-12 hours is normally enough, which is why most recipes soak legumes overnight and cook them the next morning. If cooking gets pushed back by a trip or a change of plans, changing the water and moving the bowl to the fridge buys a few more days.
Why is room temperature risky?
Soaked legumes left at room temperature for a full day start fermenting in the water and the surface turns slippery; at that point the water needs changing and a thorough rinse before cooking. Waiting past two days at room temperature isn't recommended at all.
In the fridge, loosely covering the top of the water keeps the smell from spreading to other food and stops the water from picking up fridge odors.
Should the soaking water be changed?
For a wait longer than two days, changing the soaking water once helps keep things fresh, especially in a warm kitchen where this step slows spoilage down.
Right before cooking, the soaking water should be drained and the legumes rinsed with clean water; cooking in the old water increases foaming and can leave a faint sour edge on the flavor.
Can anything be added to the soaking water?
A pinch of baking soda in the soaking water helps some legumes soften faster, but it can also make the water foam sooner while sitting in the fridge, so soda-soaked legumes are best kept to a one-day wait.
Some kitchens add a small splash of vinegar to the soaking water; that helps softening a bit and slightly extends how fresh the water stays, though the amount should stay small since too much can carry through into the cooked flavor.
It's worth remembering that the water level covering soaked legumes drops as the beans swell; for a wait longer than two days, checking the water level now and then and topping it up keeps the beans from poking out and drying above the surface.
At high altitude or in a very warm kitchen, soaking can finish faster than usual; in that case it's worth checking the water more often, since the beans can swell early.
If soaked legumes are meant to be frozen, the soaking water should be drained and the beans dried before freezing; frozen while still wet, they can turn into a single solid block inside the bag.
Soaking time also varies by legume; small ones like lentils soften in a few hours, while larger ones like chickpeas need a full overnight soak, and that gap affects how the fridge-waiting plan should look.
Anyone soaking a big batch to cook part of it and leave the rest raw should keep the uncooked portion in its own container with fresh water; mixing cooked and raw legumes in the same container invites confusion.
When soaking time and storage conditions are set right, legumes can safely wait, ready to cook, for a few days without any issue.
Writing down which legume was soaked and when on the container prevents mix-ups in a kitchen soaking more than one type at once about which bowl needs cooking first.
Comments (2)
Bir seferinde suyu değiştirmeyi unutup üç günü doldurdum, hafif ekşi bir koku vardı ama birkaç kez bol suyla durulayınca pişirdikten sonra hiçbir şekilde fark edilmedi, yine de bir dahakine iki günü geçirmemeye çalışacağım.
Kurban bayramı öncesi nohudu iki gün önceden ıslatıp buzdolabında bekletmiştim, suyunu bir kez değiştirince hiç köpürmeden pişti, üstelik pişme süresi de her zamankinden biraz kısa sürdü, gayet iyi sonuç aldım.