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How can you tell when soymilk (unsweetened) goes bad? I have some that's about 2 weeks out of date but smells & tastes fine. I've just never had any around long enough for this to be an issue, so I don't know what to smell/look for.

asked by SpecialSka almost 6 years ago
12 answers 8688 views
23b88974 7a89 4ef5 a567 d442bb75da04  avatar
added almost 6 years ago

Someone answer this. We all need to know. My friend had houseguests when he was out of town. They used the very old soy milk on their cereal that was left in the fridge. It wasn't sour at all and had definitely been opened for more than two weeks.

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drbabs

Barbara is a trusted source on General Cooking.

added almost 6 years ago

I did a lot of reading to try and find the answer for you. (IMHO, it's always bad...sorry.) Apparently it looks and smells bad and gets chunky like cow's milk when it's spoiled. But seriously? Why take chances? If in doubt, throw it out.

693453b7 7e84 4b19 b610 d1ec77bbc42d  halloween
added almost 6 years ago

Yah- I agree- I use unsweetened Soy Silk and if it separates, I chuck it. It does seem to last a long time, but I usually get rid of it within two weeks of opening. If I think I won't be using it much, I generally buy it in a small container (in a tetra pak).

23b88974 7a89 4ef5 a567 d442bb75da04  avatar
added almost 6 years ago

thanks, guys! it's annoying that the kind I like is available only in half-gallon containers. I think it's time to just pour it down the drain.

693453b7 7e84 4b19 b610 d1ec77bbc42d  halloween
added almost 6 years ago

Yah- that's annoying. I don't know how well soymilk freezes, but maybe freeze a portion of your next batch and then defrost it right before you need it- Either it will be good (yay) or you will chuck it, just like you would have had to anyway.

3639eee1 5e0d 4861 b1ed 149bd0559f64  gator cake
hardlikearmour

hardlikearmour is a trusted home cook.

added almost 6 years ago

Spoiled soymilk is pretty nasty - gets a bad smell, and tends to curdle. It seems to last well past its expiration date in the fridge. I'm confident if it looked fine and smelled fine it was fine.

C0d1f1de 4134 43ba 9510 1d7a8caa31f3  scan0004
added almost 6 years ago

I use soymilk in limited quantities, try to buy no larger than quarts. When it is bad there is no question, and it does last far longer than the labeling would lead you to believe. Treat it like dairy milk, sniff it and eye it as you would dairy milk -- but remember, yogurt and sour cream are just spoiled milk. No, don't go against your judgement, but my experience is that the CYA instructions can be overridden.

22b9ddc9 fc61 48a3 949e dee341974288  liz and dad
added almost 6 years ago

I've never tried it, but maybe you can try freezing some for later use? Here are some instructions: http://www.ehow.com/how_5632401_freeze...

73cd846c b69c 41fe 8f8b 7a3aa8dd3b93  desert
added almost 6 years ago

Why not just go by the experation date?

23b88974 7a89 4ef5 a567 d442bb75da04  avatar
added almost 6 years ago

I feel safe using milk and soy milk past the expiration date, just using a sniff test. I have a cold fridge and a sensitive nose. It isn't unusual fir either to last a week paste the expiration date. Same with eggs, I pretty much ignore any date on eggs. Here is a fun discussion on chowhound:
http://chowhound.chow.com...

23b88974 7a89 4ef5 a567 d442bb75da04  avatar
added almost 6 years ago

great info--thanks! I will try freezing half of the next carton and report back. expiration dates are usually pretty conservative, so it's reasonable to expect product to last at least a week beyond. although this is why we have a nose, I guess!

766e7ce3 8394 4788 8337 bbd8a8d3a07e  5.15.11 coconut macaroons best sm
added almost 6 years ago

I keep mine (opened) in the fridge for 4 weeks max and then pour it out. It does get chunky, curdled, and smelly if it goes bad, but that usually takes a bit longer. One test I've learned (and this is gross, I know) is to put suspicious soymilk in a mug and microwave it for 1 minute. If it jellies up and seems solid, well, that's when to toss it.