More About This ShitMaster 1000™ 3.5 lb All-In-One Mushroom Grow Bag

The ShitMaster 1000™ is a 3.5 lb manure-based all-in-one mushroom grow bag. Made for growers who want increased substrate volume without adding complexity.

This larger-format bag combines a balanced manure-based substrate and grain layer inside one fully sterilized, sealed system. Everything is pre-assembled and ready for inoculation, allowing you to focus on cultivation instead of setup.

Fully hydrated. Fully sterilized. Injection-ready.

Built for Larger Yields and Controlled Expansion

The 3.5 lb format is ideal for:

• Growers seeking larger output per cycle
• Hobbyists scaling beyond starter bags
• Home cultivators running controlled batches
• Growers wanting fewer transfers and less handling
• Anyone looking for a higher-capacity all-in-one system

The increased substrate volume supports greater colonization mass while maintaining the convenience of a sealed design.

Manure-Based All-In-One Substrate System

The ShitMaster 1000™ uses a manure-based substrate profile paired with grain in a layered, self-contained format. This structure supports consistent colonization while reducing unnecessary handling throughout the process.

The all-in-one design means:

• No separate mixing
• No additional containers required
• Reduced contamination exposure
• Streamlined workflow from inoculation to fruiting

Everything remains contained in one controlled environment.

Key Features

3.5 lb all-in-one mushroom grow bag

Premium manure-based substrate blend

Pre-assembled grain and substrate system

Fully sterilized and hydrated

Self-healing injection port

0.2 micron filter patch for airflow control

Designed for beginner and experienced growers

The ShitMaster 1000™ increases production potential while keeping the process simple.

How It Works

1. Sanitize the injection port with alcohol.
2. Inject 4–5cc of gourmet mushroom culture.
3. Allow colonization at room temperature (65–79°F).
4. Optional single mix at approximately 50% colonization.
5. Fruit directly in the bag or transfer to a fruiting environment.

Efficient setup. Larger capacity. Predictable workflow.

The ShitMaster™ Grow Bag Series

The ShitMaster™ line has been refined through years of documented builds and real-world cultivation projects across Fullsend Organicks platforms.

The 1000™ represents the larger-capacity evolution of the same proven system — built for growers who want more output without more complexity.

Please note we are not responsible for these mushroom super grow bag if injected with anything active. we do not condone to the use of spores to grow magic mushrooms spores must remain spores.