
Lightly compact the straw, especially if it’s not chopped, to remove large air pockets.Alternate layers of the substrate and the crumbled up mushroom block, leaving the top and bottom layers substrate.Measure for ideal hydration by squeezing the substrate in one hand - only a drop or two should drip out.Let excess water drain off your substrate.Soak your substrate for 20 min - 1 hour or until fully saturated.In a pinch, bags filled with water work really well as weights! We used bricks and an old grill rack, but make use of whatever you have on hand. Lids are optional! You will also need a vessel for soaking your substrate and a weight of some sort to keep it submerged. Airflow is important choose a container with plenty of holes like a hamper, plastic gardening pot, or bucket drilled with holes. Then, you need a container to hold the mix. Other clean agricultural by-products may be used too, but we find the most success with straw. Chopped straw is ideal because of the smaller particle size, making it easier for the mycelium to jump from piece to piece- like crossing a bridge. First, you need something for the fungi to grow on and eat we call this a substrate.

You’ll need a few extra materials for this method. After digesting most of the block’s food, the hungry mycelium will happily jump to more substrate. If you’re feeling creative, you can use your Spray & Grow Kit like you would spawn, and inoculate some containers! This process works best with oyster mushroom kits that are hydrated well or have recently fruited.
