Is it normal for the Chickpeas to develop white froth after being soaked for 12 hours?

Question

Yesterday at 08:00 I had soaked white Chickpeas in water and left the container in the kitchen. Daytime temperature here is 44C.

At 20:00 the same day I saw the container covered by white froth. Is it normal for the Chickpeas to develop white froth or was it caused by the heat?

Not sure if that's edible.

Asked by Anisha Kaul

Answer

Yes, it is normal for pulses to develop froth when soaked. I've seen it at lower temperatures and shorter soaking times. They can feel slimy too. This isn't a sign of bacteria development in itself, I think it is caused by the oligosaccharides slowly dissolving in water (but don't remember where I read this, so not 100% sure).

On the other hand, these conditions are also risky. Your chickpeas can have developed bacteria independently of the froth. In temperate regions, soakers aren't a problem, because bacteria growth in them is not especially quick (the 2 hours rule is made tight enough to cover things like meat, and a soaker doesn't even have enough hydrated bacteria food initially). But I have noticed that food I would have had no problem with at 22°C goes bad in short time at 28°C. The relationship between bacteria growth and temperature is not linear, and with growing heat, bacteria growth can speed up a lot. So I don't know if I would eat the peas - not because of the froth, but because of the conditions you had them in. I would recommend that you soak in the fridge next time - you don't need any fermentation to take place, so the low temperatures aren't a problem.

Answered by rumtscho

Check more discussion of this question.