How long can these be stored before they go bad?
Unactivated 72 Hour Heat Packs
I would like to get some of these in case of a power outage in the future. How long can they be stored before going bad?
Status:
Open Jan 16, 2020 - 04:25 AM
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Answer
Jan 16, 2020 - 05:57 AM
The expiration date for the ones we have and are shipping now is 4 years. After that date, the chemical reaction will still occur but it will be slower and not reach full temperature maximum and duration.
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Unactivated 72 Hour Heat Packs
Unactivated 72 Hour Heat Packs These will not be activated at shipping! Purchase the heat packs used in our shipments for your own use Disposable, biodegradable and environmentally friendly. Contents - Iron Powder, water, activated carbon, vermiculite, wood powder and salt. Uniheat shipping warmers...
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