BovedaSupply Starter Kit - RH 2-Way Humidity Control – All In One Humidity Control - Keep Item’ Fresh - Contains: 58% & 62% Humidity Packs – For Glass & Humidor – Size 8-20 Count Resealable Bag

these do what they say. adding them to some seriously dried out herbs really rejuvenated the stash...

Keeps herbs hydrated perfectly.

I use these in a glass mason jar sealed with a hydrometer. Every single one held at 58 or 62% where I expected them to. I will gladly purchase these again.

Relative humidity in a quart mason jars adjusted to the prescrided humidy on the package within 2 days. Kept constant at the prescrided humidity for over 3 weeks and counting.

Overall very happy with these packs keeping everything fresh. Also, when they dry up you can revitalize by keeping them in storage with water supply. The only gripe I have is 5 out of 20 dried up very fast.

I've used this product before and it works great. However, this recent package I got was weaker than others.I vacuum sealed one loosely with vegetables, and the humidity pack squirted liquid out the side.Sadly threw away the packaging so I can't return them. This has never happened before, just be careful when vacuum sealing!

I love these packets, they work great consistently. However I had to give Boveda only 4/5 stars because the price is a bit unreasonably high.

I like this product because I believe it keeps my herbs fresh when they are sealed in a jar and stored away from heat and light.