Garfield Bullock 01/08/2026 Garfield Bullock 01/08/2026

Mushroom Grow Bags Explained: Which Bag Do You Need?

All-in-one method: Inject liquid culture into the grain layer at the bottom of the ${growBag}. Allow the grain to colonise, then break and mix it through the hardwood substrate inside the sealed bag.
Separate method: Inject liquid culture into the ${grain}. Once fully colonised, mix that grain spawn with the ${bulk}.

Mushroom grow bags can look very similar, but grain bags, hardwood bags, CVG bags and beginner kits all serve different purposes. This beginner-friendly guide explains what is inside each bag, what to inoculate, which species it suits and what happens next.