Cardboard to Gourmet Mushrooms: Growing King Oyster Mushrooms on Amazon Boxes

Steps

1. 1
   Collect plain brown cardboard without glossy printing, remove all tape and stickers, then tear it into smaller pieces.
2. 2
   Boil the cardboard pieces for about 20 minutes to sanitize them and prevent contamination during growing.
3. 3
   Transfer the boiled cardboard into a clean tub and squeeze out excess water so it stays just slightly damp.
4. 4
   Break about a quarter of the inoculated fruiting block into pieces and layer it with the damp cardboard, packing it tightly into a plastic grow bag.
5. 5
   Seal the bag tightly with tape, making sure to leave the breathable filter patch uncovered.
6. 6
   Let the sealed bag sit at room temperature to colonize; after about a week, white mycelium patches should start appearing.
7. 7
   Continue letting it sit for about four weeks until the entire bag is fully covered in white mycelium, indicating complete colonization.
8. 8
   Slice open the bag and move it into a grow tent with consistent humidity to begin the fruiting stage.
9. 9
   After about a week, tiny mushrooms will begin pinning from the cut; within a few more days, fully grown King Oyster mushrooms can be harvested.