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My bacto says use in 6 months, but as other's have said I think it will last much longer. I do like Adam, keep it in the freezer, with the end doubled over & a clip on it.
Al
I just used some that was over 2 years old . I keep it sealed tight in a -3 degree freezer . I just asked that same question . Others have had luck past the 6 months .
This may be an answer that Rick, @nepas could answer, he has been using the UMAi casings for a long time & he would probably know the answer. I'll PM him & see if he will comment on this thread so we can all get a correct answer.
Al