Boveda 1g 58% Slim Humidity Control Packs, 1,500 Count
A rectangle rather than a square, the 1 g slim pack is shaped to drop straight down a narrow pre-roll tube. Placement is the whole argument. A tube has one usable space, the gap along the wall, and a square pack cannot use it without canting across the diameter. The slim runs the length of the tube instead, clear of the cone as it goes in. It holds up to an eighth, or 3.5 g, at 58% RH, the drier of Boveda's two flower levels. Same fill throughout: food-grade salt, purified water and a thickening agent. Only pure water vapor crosses the membrane into the product.
A Rectangle Format at 58% for Pre-Roll Tubes
Shape is the reason this SKU exists, and it is also where its limits sit. A 1 g pack has no margin above an eighth, so a tube holding more wants the 2 g or the 4 g. The slim shape gains nothing in a jar, where the square version lies flatter. And at 58% this is the drier tier, which suits product sitting in inventory rather than shipping out this week. For stock that moves, 62% is the better call. On packaging, the case runs 1,500 with no individual wrap, so an opened case works against the room until it is resealed. Stage a run and close the box. That is the trade for the per-pack price.
Key Features
- Slim Rectangle Format: Runs the length of a narrow pre-roll tube instead of canting across its diameter.
- 58% Two-Way Control: Adds moisture to a tube that has dried out and pulls it back after it is opened.
- Holds Up To 3.5 g (1/8 oz): Matched to single-eighth tubes rather than full jars.
- Pure Water Vapor Only: A reverse-osmosis membrane means nothing but water crosses into your material.
- Safe in Direct Contact: Rated to rest against a pre-roll without affecting flavor or aroma.
- 1,500 Packs per Case: Packaging-line volume for continuous pre-roll fill.
- No Activation Required: Active on arrival, so there is no soaking, charging or maintenance step.
- Drier Than 62% RH: The right level when product sits in inventory rather than moving quickly.
Technical Specifications
| Specification | Value |
|---|---|
| Pack Size | 1 g (Size 1) |
| Relative Humidity | 58% |
| Shape | Slim rectangle |
| Protects | Up to 1/8 oz (3.5 g) |
| Primary Application | Narrow pre-roll tubes |
| 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-S |
Slim or Square?
A slim rectangle lies along the length of a narrow pre-roll tube. A square pack cants across the diameter and gets in the way of the cone.
Boveda 58% or 62% for Pre-Rolls?
58% suits product sitting in inventory or moving through a long supply chain. 62% keeps more moisture in for fast-moving stock.
How Much Does a 1g Slim Pack Hold?
Up to an eighth, or 3.5 g — the same capacity as the square, just in a different shape.
Is Boveda Safe Touching a Pre-Roll Directly?
Yes. The membrane releases pure water vapor only, so nothing crosses into the material it rests against.