The large-format two-way pack. Each 67 gram Boost covers up to a pound, so this is what you reach for when you are storing a quarter, a half or a full pound and a handful of small packets will not hold the volume.
- 67 g per pack — each one handles up to 1 lb of material
- Six packs, individually overwrapped, each with a humidity indicator card so you can see when to swap
- Holds a constant 62% RH: absorbs when it is damp, releases when it is dry
- Glycerin and water only — releases nothing but water vapour, food-contact safe
- No burping required; the pack balances the container on its own
- 4.5 stars on Amazon
Why we picked it: different brand, eight times the capacity of a Size 8 Boveda, and a genuinely different job. The indicator card is the part that matters — it is the only humidity pack in the shop that tells you when it is spent without you having to squeeze it.
