1.6kg Sterilised Master Mix Grow Bag – Filtered, Rehydrated & Ready for Mushroom Inoculation

Grow gourmet mushrooms at home with ease using our 1.6kg Sterilised Master Mix Grow Bag.

Pre-hydrated, fully sterilised, and sealed with a high-quality filter patch, this premium substrate bag is ready for immediate inoculation with your favourite grain spawn or liquid culture.

 

Our master mix is expertly blended to provide the perfect nutrition, moisture content, and structure for strong, aggressive mycelium growth. Ideal for beginners and experienced growers, this bag takes the guesswork out of substrate preparation and delivers consistent, reliable results every time.

 

 

---

 

✔ What’s Inside

 

1.6kg of rehydrated, sterilised Master Mix substrate

 

High-micron filter patch for clean gas exchange

 

Sealed, ready-to-use bag—no preparation needed

 

Optimised water content for rapid colonisation

 

Premium ingredients blended for maximum yield

 

 

 

---

 

✔ Perfect For Growing

 

Oyster mushrooms

 

Lion’s Mane

 

Pioppino

 

King Oyster

 

Many other gourmet and medicinal species

 

 

 

---

 

✔ Why Choose Our Master Mix

 

Professional-grade substrate used by UK growers

 

Sterilised under strict conditions

 

Fast colonisation & high biological efficiency

 

No mess, no mixing, no sterilising

 

Reliable results at home or in small-scale production

 

 

 

---

 

How to Use

 

1. Wipe the injection port (if applicable) or cut open in a clean environment.

 

 

2. Add your preferred grain spawn or liquid culture.

 

 

3. Mix gently and seal/secure.

 

 

4. Store at 20–24°C to allow mycelium to colonise.

 

 

 

 

---

 

Grow With Confidence

 

Whether you’re producing your first flush or scaling up your home grow, this master mix bag gives you the clean, nutrient-rich foundation needed for healthy mycelium and incredible harvests.