Ummmm.... you can't precook the beans and then get them to sprout. Perhaps I misunderstood your statement.

The trick to keeping the beans "healthy" is to rinse them everyday with fresh water and drain completely until they have sprouted and you want to do something with them. And then, once sprouted, keep in the 'fridge.

You did misunderstand, I posted about the sprouts themselves, not the beans. Recommendations are to boil the sprouts for long enough to kill the bacteria. I don't know how long that would be. For targeted groups, rinsing is not, apparently, enough.

I would think you could stir fry them and kill bacteria instead of boiling. Hot oil would do the trick and you don't end up with mush.

Are the warnings you've seen about purchased or home grown sprouts? There were some incidents with producers using contaminated water or something like that - I seem to recall public notices some years back.

If you're using using your own tap water, and it's safe for drinking and cooking, I don't think you need to do more than simply rinse thoroughly, and cook briefly, if desired.

The problem is not with the water, it is with the beans themselves which can be tainted.

https://foodsafety.uconn.edu/seed-and-bean-sprouts/#:~:text=Children%2C%20the%20elderly%2C%20pregnant%20women,Cooking%20kills%20the%20harmful%20bacteria.

Since you can't boil beans then sprout them, can you treat them with something to kill the bacteria that can be rinsed off? Like alcohol?

You can boil the sprouts. I am trying to find out how many minutes would do the job. Long enough to kill, short enough not to turn them to mush.

What ya trying to kill? If it's e coli, it needs to hit a complete temp of 160+ for 10-15+ seconds. Like blanching spinach in boiling water or stir frying at high heat for several seconds. If it's salmonella, more like 145-165 for 30-10 minutes depending on the temp you are holding at. Salmonella takes longer to kill. If you think you are dealing with bacillus cereus- cells and spores are killed by steaming, roasting, frying- over 145. The toxins are nuked at 249. Salt increases heat resistance and acid decreases it on that one. So be careful with your salts and acids in preparation.

What I read from tghat article is that "know your beans" and keep them refrigerated.

I have sprouted lots of different seeds AND BEANS BUT NEVER MUNG BEAns

I'm curious about the nutritional value of sprouts once they are heated. I thought the appeal of sprouts was their 'live' nature and nutrients. Does that all change if you have to heat them up? Or do you just love them? I like them ok in stir fries and phad thai, but probably wouldn't eat them raw anyway. Or boiled.

Heres an article on how to heat treat the seeds for safety before sprouting. I didn't read it all, but maybe it will be helpful?

https://pubmed.ncbi.nlm.nih.gov/15222561/

Thank you Olychick, and everyone. I was not aware (or didn't remember) the health warnings, and since I have other health issues going on I am thinking that for now I am going to make my stir fry with the many other items that can be used and just avoid sprouts. I can still cook the mung beans, unsprouted, there are a couple of soup and curry recipes I can use. Meanwhile I am reading more Kenji recipes I can use with my new wok.

lucillle, its been a few years since I've done anything with sprouts. We'd been enjoying them and then all the info began coming out about them making people sick. By the time I'd looked into some of it, I was so confused I just gave up on sprouts. I think so did many restaurants. There was one place, a nice 'halfway' point where I'd meet my Mom for lunch often that had a great soup and half sandwich daily special and part of the appeal of the sandwich was the vegetables and sprouts. They quit putting them on their salads and in sandwiches uncooked. I was sad to see them go but I've got no patience at all for things like upset stomachs, digestive issues, any of the rest so I just don't eat them.

Sorry, I know that's not helpful when you'd been looking forward to them.

(and if everyone is seeing this in bold, I don't know why. The bold option is not highlighted on my preview! - it's not intentional)