1LB Rivalry Grain : Compact Rye Grain Bag with Injection Port

1 lb Rivalry Grain – Sterile Rye Mushroom Grow Bag with Injection Port

SporeAura’s 1 lb Rivalry Grain is a compact, ready-to-use mushroom grow bag designed for clean and reliable gourmet mushroom cultivation. Filled with sterilised organic rye grain, it provides a nutrient-rich base for strong and consistent mycelium growth.

Each sterile grow bag features a medical-grade self-healing injection port for safe, direct inoculation without contamination risk. Produced using professional cultivation equipment, the substrate is fully sterilised and ready for immediate use.

Simply inject, maintain stable conditions, and allow full colonisation before fruiting or transferring to a bulk mushroom substrate if needed. An alcohol swab is included to support sterile handling from the start.

A simple, dependable solution for effective home and small-scale mushroom cultivation.