FUJIMA DANK TANK-VACUUM JAR

Description

A vacuum jar pulls the air out rather than just sealing it in, which is as close to proper preservation as you get outside a lab. If you are keeping material more than a few weeks, this is the container that makes a visible difference.

Using it

• Fill, seal, then pump until the lid resists.
• Store somewhere cool and dark — the vacuum handles air, not light or heat.
• Check the gasket occasionally; a perished seal loses the vacuum silently.

Why storage matters

Material degrades through light, air and heat. An airtight, opaque container in a cool cupboard keeps it fresh for months; a plastic bag on a windowsill dries it out in a fortnight and strips the terpenes that give it any smell. Around 59–62% relative humidity is the target — a two-way humidity pack inside a sealed jar holds that for a couple of months.

See all stash jars and storage.