I bought these a few years ago - do they have a shelf life? How do I know if they're still good?
1862916
I believe that there is an "expiration" date on the label located at the bottom of the container.
298179
I'm not sure what the shelf life is but the chemicals are in a capsule form so I would think as long as they are in cool, dry place they should last a reasonable amount of time.
1151347
I discovered some that I left in the freezer that were over 4 years old. They still taste great. I keep all of this kind of stuff in the freezer because it always tastes fresher, and extends the shelf life by double or triple what is printed on the package.
1360316
The ones I bought last month say they are good through October 2015, but I'm assuming that's unopened. Once opened I would just freeze them!
400161
I suspect we were sent knock-offs because ours came without any dating on them at all. It's fine that the listing at Amazon says they're good for a shelf life of 8-10 years, but that's only useful if there's a date on the package ... our has none, so who knows?
1821615
As long as they are carefully stored they should have a decent shelf life. I have some from almost three years ago, still work when cracked and shaken. Nephews get a huge kick out of them.
1593482
I purchased mine about 6 months ago. Package says use by 9/2015 so I guess that was about 2 years shelf life. As others have stated these last much longer.
716888
We buy a year's supply at a time and find them to be fine. The packages I bought the first of 2013 have an expiration date of 12/14 so they would probably last at least 2 years, maybe longer.
2094597
Well, I've had mine since this time last year and it is still good. They are dried, so I expect they will keep quite a long time. The package that mine came in is resealable (zip top) so that is helpful.
2199389
As long as they stay in a fairly dry environment, I haven't found a shelf life. I've had mine for a few months now, living in humid Florida with no AC, and I've had no issues. Keep the packages dry, and they keep for months.
1708987
If they in the SEALED package they should be good for at least a year. I have used last years leftovers with good results.
176248
They are good for a couple of years according to the package. I've had them on the shelf for a year without issues. Brian
2031264
They have a shelf life about about 4-5 years. Batteries deteriate over time so when you purchase them you should buy enough to be used in a timely manor.I hope this answers your question.
635980
they do have a long shelf life....I've never had any trouble in that respect.....
773953
mine had 2 years left when I got them. the date is on the label. if you get them on amazon the turnover is rapid so they have always been fresh
1369716
It depends on where you get them. I have gotten mine from Amazon and they have a shelf life of more than a year. Expiration date is printed on the bottom of the container.
1337414
Not sure about the shelf life, but I've had mine up to two years if stored in a cool dry place .. maybe even longer, as they are sealed in plastic....