As said keep them in the wrapper they come with...I also put them in a ziplock and throw it in my cooler just to be on the safe side. But they last a good bit and you can always recharge them when needed
I put mine in a big ziplock with a dish of distilled water and leave it there for a little it should absorb a good amount in a few days but just keep checking it
How long do these last in general onced opened? We are looking to start using these.
I use them in my cooler with some beads and they last anywhere from 3-6 months.
In theory, they should only dry up as moisture leaves the enviroment, so the tighter your seal and the less you open your humi/cooler, the longer they will last. My last batch are at 4 months, and are just starting to dry out.
If you buy the 65's and put beads in with them they last a while!! Mine are going on 6 months and looking good so far. My 69's in my regular humis last around 4 but I recharge them when they get halfway down
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