Wisesorb Premium Quality Desiccant Bulk Material (3A Molecular Sieve)

Good value for a simple product, we are using it to control hardness in our hot tub

Room was at 30% humidity. this thing sucked it up down to 18% in under 20 minutes

4a molecular sievesTwo experiments:30 GM to startPoured 5x the apparent volume in water, fizzed.Dried3x on paper towels. Probably lost ~ 30 beads.Weight:40.41gm. Aluminum lasagna pan, convection oven set to 500c start time: 9:45pm.End time 10:45pm . After 1hr in oven weighed30.4 GM.Put Hygrometer that reads down to 10% into polyethylene bag filled with air. Hygrometer read 40%.Added above cooked beads to bag and checked in morning. Hygrometer read 10% (lowest it could read).

I use this to keep our dog kibble, cat kibble super clean, dry, and fresh for all our animals. I also use this for my DIY powder food and whatever else I can think of. The way you use this without a hygrometer is to use a kitchen gram scale and measure the weight of the beads + sachet before and after and replace it when you see a 20-30% increase in weight. Also microwave + toaster oven at 200 deg F for 15 minutes (low temp) will do amazing work on recharging the beads. Considering using a skillet next time. Got these for similar reasons as other users - no indicating color means its safe. Orange indicator is methyl violet which you can wikipedia and see that its really quite unsafe, although it is silica bound. This is really clean silica gel and a great product. Can see myself using this same 7.5lb jug for more than a year with reheating.

This product is not usable for the oil and water separation