
"Blank" Substrate Block
Blank 4kg Mushroom Substrate Block
Our 4kg blank substrate blocks are designed for growers who prefer full control over their mushroom cultivation. Super-pasteurized at 100C for 9 hours and ready for inoculation, these blocks provide a clean, consistent foundation for growing a variety of gourmet and medicinal mushrooms. Introduce your preferred grain spawn under sterile conditions, incubate, and fruit when ready.
Each block is a balanced mix of high-quality ingredients optimized for strong mycelial colonization and multiple flushes.
Ideal for:
- Advanced growers looking to inoculate their own substrate
- Farms scaling production with a controlled starting point
- Research and experimentation with different mushroom species
Made to order: Please allow 1 week for production and shipping.
Shipping is arranged separately. We will contact you after purchase with a shipping quote, or feel free to reach out in advance for an estimate.
For bulk orders, consultations, or setting up a regular supply of substrate blocks, contact us at greetings@earthlingsuperfoods.com.