Dry & Dry Blue Indicating Silica Gel Beads Desiccants (Industry Standard 3-5 mm) - Reusable Desiccant Beads Silica Beads(Blue to Pink) - 2 lbs

I’ve been using the Dry & Dry [2 LBS] Blue Indicating Silica Gel Beads Desiccants (Industry Standard 3-5 mm) as my go-to desiccant for the Bambu AMS, and it’s been a solid addition to my 3D printing setup. Living in a humid area, keeping filament dry is a constant battle, and these reusable silica beads have made it a lot easier to win that fight.The 2-pound jug is a perfect size for my needs—enough to fill multiple desiccant holders in the AMS without feeling like I’m rationing it. The beads are about 3-5 mm, which makes them easy to handle and pour into breathable bags or containers without spilling everywhere. I love the blue-to-pink color change feature; it’s a clear, no-guesswork indicator when they’ve absorbed enough moisture and need a recharge. In the AMS, they start off a vibrant blue, and over a couple of weeks, they gradually shift to pink as they soak up humidity from the filament spools.Performance-wise, they do the job well. Paired with a hygrometer in the AMS, I’ve seen humidity levels drop from the 40-50% range down to a steady 15-20% within a day or two, depending on the weather. That’s been a lifesaver for my PLA and PETG prints—no more stringing or brittle parts due to moisture. The fact that they’re reusable is a huge bonus. When they turn pink, I pop them in the oven at 225°F for about an hour (spread out on a tray), and they’re back to blue and ready to go. I’ve also tried the microwave defrost method for 10 minutes, which works in a pinch, though it’s a bit less consistent.The build quality feels reliable—the beads don’t crumble or turn to dust, even after a few recharge cycles. The jug itself is sturdy with a tight lid, keeping the unused portion fresh until I need it. One small quirk: the color change isn’t always uniform across all the beads, so some stay blue longer than others, but it hasn’t affected their overall effectiveness. Also, they’re not the fastest at absorbing moisture compared to some pricier options, but for the price and reusability, I can’t complain.For anyone running a Bambu AMS, these silica beads are a practical, cost-effective way to keep filament in top shape. They’re simple to use, easy to recharge, and have kept my prints smooth and consistent. Definitely a worthwhile pickup for any 3D printing enthusiast dealing with humidity woes.

I got these to help keep my workshop at a low humidity for 3d printing (as most of the other people did as well). I have a thermometer and humidity gauge that I am using to monitor, and saw immediately just how powerful this desiccant is. I put one on the desk, and one in a 3d printed desiccant holder, the one in the desiccant immediately read 10% which is the lowest my humidity gauge can go. The overall humidity in the space started dropping as well, which I am happy about.I am impressed! Seeing much came in a 2 lb. package I was skeptical, but now I feel a lot better.

Purchase this to use with my 3-D printer filament. It is works great and is re-chargeable so you can reuse it multiple times. I highly recommend. Color change and durability is great!

Seems to work well as a desiccant, after several months.The instructions for "recharging" them were clear and mentioned .5 to 2 hrs in the oven at 250. Took under a half hour before they were deep blue and ready to go again.

Absorbs moisture very well.

Used the beads for my Bambu Lab AMS, worked like charm.

Why did you pick this product vs others?:I vape in my house but needed something to catch the smoke since we moved into a non-vaulted ceiling unit and my cats were getting snuffly. I got those little smoke buddy type air filters and they get really soaked after a day or two, and are way to expensive to just keep buying. We put them in solo cups full of these beads and they do a great job sucking moisture out. Now instead of spending 40 dollars every week on new filters, I am able to constantly cycle them for months. So cool. Defrosting in microwave didnt really work well for me when recharging the beads but 250° in the oven brings them right back to vibrant blue. I love love love that these change color to indicate how much moisture they have sucked up; it gives you valuable information in that sense alone.

I bought the 2 lbs pack for around $10 — great value for the quantity. I used about 300g in a 20-liter sealed container, and it brought the humidity down from 80% to 30–40% within an hour. The color change was subtle, so it’s a bit hard to judge saturation levels precisely. I haven’t tested the regeneration process yet, but based on the performance so far, this seems like a good purchase.