HERB GUARD Airtight Smell-Proof Jars 500ml (3-Pack) Review

The HERB GUARD jars are the perfect partner for those Boveda packs we just talked about. The key feature here is the amber UV-blocking glass — and that's not a gimmick. UV light is one of the main things that degrades terpenes over time, and while clear glass jars look nice on Instagram, they're offering zero protection for your stash.

The Seal is Legit

Each lid uses a silicone gasket with a quarter-turn locking mechanism that creates an airtight seal with this incredibly satisfying click. We tested it with pungent material inside and put our nose right up to the seal — absolutely nothing. Not a hint, not a whisper. The seal is genuinely airtight, not just kinda-sorta tight. Your herb stays fresh, your room stays smelling like nothing.

Three Jars for Total Control

While it was originally sold as a single 500ml jar, HERB GUARD now sells it as a 3-pack — which is arguably better for a proper setup. Use separate jars for different strains so flavours never cross-contaminate, keep a rotation going (open jar A, jar B stays sealed), or gift one to a friend. That's 84g of total capacity across the set.

The Ultimate Storage Setup

Fill each jar to no more than 80% capacity, drop in a Boveda 62% pack, seal it up, and store it in a cool, dark cupboard. Herb kept this way maintains peak quality for 3–6 months without any noticeable terpene loss. At £71.75 for three 500ml jars, it works out at under £24 per jar — the UV protection and proper seal make it a worthwhile investment if you care about your herb staying fresh.