Originally Posted by Yehosha
What I'm curious about is at what point does that happen? 18 or 19 years is a long time. Do they last 7, 10 or even 15 years? Earlier today I tried googling it and found nothing conclusive abotu a definite expiration date so I emailed MayDay and asked. If/when they write back I'll post their reply.
I have some right now that are at or just past their expiration date. I'll be moving this summer so when I start going through things and locate them I plan on trying one each year for a few years to see if I can get an expiration idea. If I get time to go through the pantry sooner I'll post my observations.