This 1,200 ml kit is designed for growing mushrooms and comes with a prepared growing medium, a lidded tray, a filter bag and two paperclips. The included instructions explain the process in a few straightforward steps.
Strain Characteristics
| Trait | Description |
|---|
| Growing difficulty | Easy |
| Cap appearance | Very pale cream to white, sometimes with a cracked, mosaic-like surface |
| Cap development | Rounded when young, occasionally developing irregular surface patterns |
| Stem appearance | Pale cream to almost white |
About the Strain
B Minus, also written as B-, is a pale variety of Psilocybe cubensis associated with the classic B+ family. Its almost-white caps and cream-coloured stems give it a distinctive appearance, while some specimens develop irregular cracks across the cap surface, creating an unusual mosaic-like pattern.
The variety's history is linked to the development of pale selections from B+ genetics.
Although the two share a historical association, they are recognised as separate commercial selections. The pale pigmentation and characteristic cap texture distinguish this line from the more familiar golden-brown appearance of B+.
Product Details
| Specification | Value |
|---|
| Commercial name | B Minus |
| Species | Psilocybe cubensis |
| Tray volume | 1,200 ml |
| Container | Plastic tray with lid |
| Grain | Fully colonised rye |
| Base layer | Perlite |
| Casing layer | Vermiculite |
| Included accessories | Filter bag and two paperclips |
| Instructions | Included |
Is a Heat Mat Really Necessary?
In most homes, it's possible to find a suitable spot with enough light and a reasonably stable temperature, so a heat mat is usually not necessary. If the surroundings are too cool, additional warmth may be helpful. A heat mat can be used on its own, while an optional thermostat offers more precise temperature control when needed.
References
- Discusses B+, not an authenticated B Minus pedigree. It cannot support the claimed June 2021 selection history.
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