Don’t throw away the little white packets that come in shoeboxes, they can be really useful.

By Dr. Kyle Muller

They can be found in shoe boxes, in some food packaging, and even in high-tech devices: we’re talking about silica gel packets! And if you’re in the habit of throwing them away, here’s a good reason to stop!

We have all seen these little white sachets, often labelled “silica gel”, at least once. And for good reason: they protect many everyday objects from the ravages of humidity. It’s no surprise to find them in shoe boxes, powdered drink containers, 3D printer filament spools, and many other places.

However, once the product in question has been opened, many people simply throw away the little silica gel sachet. Let’s say it right away: this is a mistake! On the one hand, it can be very useful to leave the bag where it is—for example, in the powdered drink container—to prevent moisture from getting in. On the other hand, when it is no longer needed where you found it, you can recycle it by using it for something else.

The little bag that can save an electronic device

Keeping small bags of silica gel in a kitchen drawer could help you save an electronic device that has been damaged by moisture. We’re not necessarily talking about a smartphone that’s fallen into the toilet — that’s a bit beyond simple moisture — but for a device that’s been damaged by rain or has had a rough journey in a rucksack alongside a poorly sealed bottle, this could help you save the day.

Cameras, smartphones, headphones, batteries, external hard drives… many devices can be affected. You can put them in an airtight bag, add several silica gel packets, seal the bag tightly and leave it for 24 to 48 hours. Only turn the device back on when you are sure it is no longer damp.

A useful everyday accessory

In general, you can also slip one or two sachets into the storage case of your Nintendo Switch or PlayStation Portal, or even into the backpack that holds your camera equipment. Moisture can sometimes creep in where you least expect it!

It is also important to note that silica gel absorbs moisture until it is saturated. But when you notice that a bag is full, that doesn’t mean you have to throw it away. You can spread the bags out on a baking tray and dry them in the oven for 1 hour at 120°C, turning them over after 30 minutes. This way, you can reuse them. It’s the eco-friendly side of this tip!

Kyle Muller
About the author
Dr. Kyle Muller
Dr. Kyle Mueller is a Research Analyst at the Harris County Juvenile Probation Department in Houston, Texas. He earned his Ph.D. in Criminal Justice from Texas State University in 2019, where his dissertation was supervised by Dr. Scott Bowman. Dr. Mueller's research focuses on juvenile justice policies and evidence-based interventions aimed at reducing recidivism among youth offenders. His work has been instrumental in shaping data-driven strategies within the juvenile justice system, emphasizing rehabilitation and community engagement.
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