ShiitBag’ Manure-Based Sterile Bulk Substrate

WHY SHIITBAG
Dialed in by working mushroom growers, ShiitBag is a sterile, manure-based bulk substrate built to push yield on dung-loving species. The recipe’s been stress-tested for years for fast colonization, strong structure, and consistent fruiting—bag, tub, or tent.

WHERE IT SHINES
Run it in monotubs, filter bags, trays, Martha tents, or humidity-controlled rooms. Fruit straight from the bag or mix to bulk—your call.

FEATURES
Made from 100% organic materials

pH balanced with a complex nutrient profile

Proven vigorous mycelial growth

Fast colonization and heavier flushes

Great aeration + moisture retention

Hydrated to field capacity

Sterile and ready to use

WHAT’S INSIDE
A proprietary blend of composted horse manure, coco coir, and targeted supplements—sourced from quality local, organic, and non-GMO inputs. No sketchy additives; just clean, grow-ready substrate.

HOW TO MIX (SPAWN:SUBSTRATE)
Start with 1 colonized grain spawn bag to 2–3 ShiitBags.
Higher spawn rates can speed up colonization and help outcompete contaminants.

PRO TIPS
Break up and mix thoroughly for even distribution and surface micro-texture.

Keep surface conditions dialed (glistening, not soggy) for dense pinsets.

Maintain clean technique from spawn to fruit for best results.

Heads-up: Know your local laws and species guidelines. Bruise Blue sells sterile substrates and gear—what you choose to cultivate is on you.