https://www.midwayusa.com/prod...-cubic-feet-canister

When the indicator turns pink, is it because of a bad can? The cardboard boxes within? Can the desiccant be defective?

I've got a lot of ammo, all in the original inner pack inside GI cans with one 40 gram aluminum desiccant pack with the handy indicator. I just did my "every few months" check of all the cans, and three indicators (out of about 30) were bad. On one I replaced the entire can and recharged the pack (3 hours at 300), on two others I recharged them (same method), I will check all three again in a few weeks. I recharge ALL the packs, good or bad, every few months. BTW, these cans are in the basement, house has a/c.

I'm confident these 40 gram aluminum packs have good desiccant that can be recharged over and over. Is that correct?

I have a desi-pack I have recharged a couple of dozen times that I keep in my safe. It seems to turn pink at about the same time of usage as it has from the start, so I suspect yours will too.

My indicator turns pink when moisture reaches critical levels, so I’m guessing yours is the same. Pink means time to recharge in the oven.