Uncle Myc's CVG All-In-One Mushroom Spawn Bag - 7 lb

Spawn and Substrate in One Sterile Bag - 7 lb Kit

Layering spawn and substrate by hand adds steps and gives contaminants more chances to get in. This bag arrives with both layers already assembled and pre-sterilized in certified autoclaves, so you inoculate through the port and let the mycelium colonize. A filter patch handles gas exchange while keeping outside contaminants away.

At 7 lb, this single bag suits growers who want a straightforward, ready-to-inoculate unit: first-time cultivators learning the process, or experienced growers adding a convenient block to a small rotation.

Key Features & Benefits

• Two layers in one bag — a grain spawn layer and a CVG substrate layer remove the separate mixing step.
• Pre-sterilized in certified autoclaves — gives colonization a clean start.
• Self-healing injection port — lets you inoculate while helping keep the bag sealed.
• Filter patch — allows gas exchange while keeping contaminants out.
• CVG substrate — a blend of coco coir, vermiculite and gypsum.

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

Choose this bag if you want a ready-made, sterile starting point for mushroom cultivation without preparing grain and substrate yourself. It works for beginners and for experienced cultivators who value convenience.

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

Uncle Myc's makes this all-in-one bag with a grain spawn layer and a CVG substrate layer of coco coir, vermiculite and gypsum. It includes a self-healing injection port and a filter patch, and it is sold as one bag.

Frequently Asked Questions

Q: What is in the bag?
A: The bag holds a grain spawn layer and a CVG substrate layer. The substrate is made from coco coir, vermiculite and gypsum.

Q: Do I need to sterilize anything?
A: No. The bag is pre-sterilized in certified autoclaves before it ships. Keep the bag closed and clean your injection tools before use.

Q: What is a self-healing injection port?
A: It is a section of the bag you pierce with a syringe needle to inoculate. It is designed to reseal afterward, which helps keep contaminants out.

Q: What does the filter patch do?
A: The patch lets gas pass in and out of the bag while blocking contaminants. This supports healthy mycelial growth inside a closed bag.

Q: Is it suitable for beginners?
A: Yes. Because spawn and substrate come together and sterile, there is less to prepare than with separate components.

Q: How many bags are in an order?
A: Each order is one bag.