Step 8: Incubation
Now that the hard part is over, you just need to let the jars rest somewhere warm and dark. Like in a cupboard above the refridgerator, or in a cardboard box by your computer tower.
This allows the spores to incubate into mycelium the body that absorbs nutrients and water.
Keep them around 80-86 degrees F. It will just take longer for the mycelium to grow if it isn't near the optimum temperature.
It takes around 3 to 4 days to see the first hairs of mycelium forming as white spots and 3 to 5 weeks to let the fungus get to a 100% foothold in all the substrate, depending on temperature conditions.