Boveda 1g 58% Square Humidity Control Packs, 1,500 Count
Each 1 g square pack holds up to an eighth, or 3.5 g, at 58% RH. That is the drier of Boveda's two flower levels, and the one for material sitting rather than moving. Square format lies flat against a lid or in the base of a jar. The pack is a Size 1 in Boveda's own numbering, the smallest they make. Accuracy holds at ±2% of the labeled figure in a container that is genuinely airtight. Shelf life is two years unopened, and in use a pack runs two to four months. The fill is food-grade salt, purified water and a thickening agent behind a reverse-osmosis membrane.
The Square Format at 58% for Tubes and Small Jars
At 1,500 per case this is packaging-line volume, and the square shape suits tubes and small jars with a round or wide footprint. The sequence on a line is short. Open the case, stage what the run needs, and reseal the rest the same day. Drop a pack in as the container is filled, not after it is closed. Then leave it 24 to 48 hours before reading anything, because the air needs time to settle. Nothing needs activating, since the packs are live on arrival. The slim rectangle version of the same 1 g pack fits narrow pre-roll tubes where a square will not lie flat. Choose 58% or 62% by whether the product is held or moving.
Key Features
- 58% Two-Way Control: Adds moisture to a container that has dried out and pulls it back when opened.
- Holds Up To 3.5 g (1/8 oz): Matched to single-eighth tubes and small jars rather than full ounce containers.
- Square Format: Lies flat under a lid or in a jar base without canting across the diameter.
- Pure Water Vapor Only: A reverse-osmosis membrane means nothing but water crosses into your material.
- Food-Grade Fill: Salt, purified water and a food-grade thickener, safe resting directly against contents.
- 1,500 Packs per Case: Packaging-line volume, priced for continuous fill rather than single jars.
- No Activation Required: Active on arrival, so there is no soaking, charging or maintenance step.
- Drier Than 62% RH: The right level when material is held long term rather than moving quickly.
Technical Specifications
| Specification | Value |
|---|---|
| Pack Size | 1 g (Size 1) |
| Relative Humidity | 58% |
| Shape | Square |
| Protects | Up to 1/8 oz (3.5 g) |
| Case Quantity | 1,500 packs |
| Technology | Patented 2-way humidity control (adds and removes moisture) |
| Composition | Food-grade salt, purified water and a food-grade thickening agent |
| Membrane | Reverse-osmosis membrane — releases pure water vapor only |
| RH Accuracy | ±2% of labeled RH in an airtight container |
| Direct Contact | Safe against stored material; will not damage contents |
| Shelf Life | 2 years unopened |
| In-Use Life | 2–4 months depending on conditions |
| End-of-Life Indicator | Pack turns rigid when spent |
| Activation | None — active on arrival, no soaking or charging |
| Manufacturer | Boveda Inc. |
| SKU | MB58-01 |
Square or Slim — Which 1g Should You Use?
Square lies flat in jars and wider tubes. Slim is a rectangle built for narrow pre-roll tubes where a square will not sit properly.
Boveda 58% or 62% — Which Is Right?
58% runs drier and protects long holds and denser material. 62% keeps more moisture in for product moving quickly to a customer.
How Much Does a 1g Boveda Hold?
Up to an eighth, or 3.5 g. The 4 g covers a half ounce and the 8 g a full ounce.
Do These Need Activating Before Use?
No. They arrive active with no soaking or charging, and reach target RH within 24 to 48 hours in a sealed container.