Reusing silica gel packets

by Michael Smith (Veshengro)

silica gel packetsDo not throw those packets away which come in different sizes. While they are not edible – please don't try – they can be reused in several ways.

We find those little – and sometimes not so very little – packets everywhere. They pop our of all sorts of packaging and lurk like an ugly bug or something in vitamin bottles, new shoes and many other products. The majority just toss those packets out but there are many ways in which we can actually reuse them. So, hold on to them. They can come in handy.

Silica gel is a desiccant, a substance that absorbs moisture. It is not a gel, despite its name, but actually a very porous mineral with a natural attraction to water molecules, that is to say, in simple terms, moisture.

Manufacturers utilize the “gel” to keep goods from spoiling, molding or degrading due to humidity. The “gel” itself is nontoxic, but can have a moisture indicator added (cobalt chloride) which is a known toxin that turns pink when hydrated and is otherwise blue in its dry form. Most silica found in our food and household purchases, however, looks like tapioca beads and is benign unless combined with certain chemicals. Even in that benign form, though, you should not eat it.

Although silica gel has massive potential for reuse, there do not seem to be an recyclers, commercial ones I mean, that are prepared to, well, recycle it.

I tend to keep them, whatever the size, for future reuse. The only problem I have is that I keep forgetting where I put them. Which reminds me that I must look for all of them and – finally – put them somewhere all together into a box or such and then label the box. – Update: Box with packets found. Now must put label on box and remember where it is.

There are a number of reuse possibilities for those little, and not so little, sachets, that can keep the stuff out of the landfill for a little longer.

  • Put some packs in your ammo cans and gun cases/safes to keep the ammo and guns dry. The same goes as to where you keep your knives.

  • Protect personal papers and important documents by putting some gel in a bag wherever these are stored, such as filing cabinets (oh, I know, I am old-fashioned and yes, I still use them – the filing cabinets that is).

  • Keep with photos to protect them from humidity.

  • Put and keep a little sachet of gel in your camera bag. After snapping photos in cold or wet conditions, silica gel will absorb moisture to keep your lens from fogging or streaking.

  • Leave a couple packs in your tool box to prevent rusting of tools.

  • You could also use the gel to to dry flowers or place with seeds in storage to prevent them going moldy.

  • Put some packets on your window sills to banish condensation.

  • Use in luggage while traveling.

  • Put some bags with your leather goods, such as coats and shoes, bags, belts, etc., wherever you keep them to to prevent them going moldy in storage.

While these packets may be annoying and seem like a waste of resources, they can extend the life of many items. Another reason someone needs to be collecting them to recycle: they can be reactivated repeatedly. To recharge, you just need to bake the saturated beads on a cookie sheet in the oven, though that takes a while, or gently in the microwave. They can also be air dried near a radiator or other safe heat source.

P.S. If you don't have silica gel packs handy then rice in small cotton bags will also do the trick of absorbing moisture. Our parents and grandparents used to do that to keep salt from getting lumpy.

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