Uncle Myc's CVG All-In-One Mushroom Spawn Bag - 4 lb

Spawn and Substrate in One Sealed Bag - 4 lb

Preparing separate spawn and substrate means more handling and more chances for contamination. This bag combines a grain spawn layer and a CVG substrate layer in one sealed unit. It is pre-sterilized in certified autoclaves, and the self-healing injection port and filter patch let you inoculate and manage gas exchange without opening the bag.

At 4 lb, this single bag suits hobbyists, first-time cultivators and growers running a small trial. Because it is sold each, you can test it on one run before planning larger batches.

Key Features & Benefits

• Two layers in one bag — grain spawn and CVG substrate come together, so there is no separate mixing step.
• Pre-sterilized in certified autoclaves — gives you a clean starting point and helps reduce contamination risk.
• Self-healing injection port — lets you inoculate with spores or liquid culture while keeping the bag closed.
• Filter patch — allows gas exchange while helping keep contaminants out.
• Coco coir, vermiculite and gypsum substrate — a blended medium made to hold moisture and support mycelial growth.

Who Should Use Uncle Myc's CVG All-In-One Mushroom Spawn Bag

Home growers who want a simple, ready-to-inoculate format will find it easy to use. Experienced cultivators can use it as a convenient test bag or a low-prep option beside their own methods.

About Uncle Myc's CVG All-In-One Mushroom Spawn Bag

This is a 4 lb spawn bag with a grain spawn layer and a CVG substrate layer made of coco coir, vermiculite and gypsum. It is pre-sterilized in certified autoclaves and fitted with a self-healing injection port and a filter patch. It is sold as a single unit and ships at 4.4 lb.

Frequently Asked Questions

Q: What does CVG mean?
A: CVG refers to the substrate blend of coco coir, vermiculite and gypsum. Together these materials make a moisture-retentive medium for mycelial growth.

Q: Do I need to mix my own substrate?
A: No. The bag already contains a grain spawn layer and a substrate layer. You inoculate through the injection port and manage the bag from there.

Q: What is a self-healing injection port?
A: It is a sealed entry point you pierce with a syringe needle. It closes again after the needle is removed, which helps you inoculate without opening the bag.

Q: What does the filter patch do?
A: The patch allows gas exchange between the bag and the room. It also helps keep contaminants out while the culture develops.

Q: Is this bag suited to beginners?
A: Its all-in-one design removes several preparation steps, which makes it approachable for first-time growers. Experienced cultivators can use it too.

Q: How many bags come in an order?
A: Each order is a single 4 lb bag.