Hydrostone Terracotta Humidifying Stone (3 Pack)

I was skeptical at first but after reading many positive reviews I had to check them out. I can attest they are effective, but they don't work the same as a Boveda or a similar 2-way moisture pack. I use them for cannabis I grow and cure that has dried too much. Like others have mentioned they work very quickly, meaning the water that's in the stone will evaporate quickly. This means if you put it in a closed jar with some dried out plant material, you will indeed see the RH % in the jar shoot up fast, but the moisture doesn't absorb fully into the plant material for some time. So, if you remove the stone quickly from a jar with, say, 1 oz of dried out plant material, the RH will drop again pretty quickly as the small amount of water vapor is absorbed, and you're back where you started.The upshot is, if you have a moderate amount of buds or plant material to rehydrate, you shouldn't just pop a fully wet stone in a jar and leave it like you would with a Boveda, because the water evaporates into the air quickly and may not fully absorb for a while, and the RH may get into mold territory in the meantime. Rehydrating very dry plant material usually takes some patience, and I don't recommend more than a few drops at a time on the stone. Let the water fully soak into the stone (a few seconds), place it in the container and give it time to absorb into the buds before rewetting, keeping track of the RH with a meter. It definitely works, but it's a little more work than a moisture packet to get, say, an ounce of dried buds stabilized at 58% RH in the jar, but the nice part is these stones can be reused over and over, and they're very cheap. Highly recommended, especially if you're a grower and, like me, you don't like buying and later throwing away all those moisture packs.

LOVE IT THEY WORK WONDERS♥

I had some cannabis about a year old that the humidity had dropped to upper 30's. I figured why not try these. In 1 day the humidity was up to 60%. Took them out and the next day humidity went down to the low 50%. Put them in another day and got it up to about 70%. Took them out and a couple days later was still at at 59% and has stayed there since.

They are what I ordered but they are smaller than I thought they would be. So I used all three in my brown sugar to Make sure it would keep it moist.

This really works keeping the brown sugar softer. I purchased several for family and friends. Just soak one for 5 minutes and put in the container holding the brown sugar.

Very good

Seems to help add some moisture to buds

Works great, stops my brown sugar from turning into stone.