# How to Make Substrate Jars
According to the Food Reference, the history of mushrooms and their importance to mankind is a long one. In ancient Egypt, mushrooms were believed to give immortal life when eaten. As time progressed, other traits were attributed to them, such as super-strength, the ability of the soul to find the gods or the ability to find lost possessions. Growing mushrooms also has a long history, and it is something you can do yourself with substrate jars. Rather than buy these jars, you can make them yourself.
Things You'll Need
- Insert lids
- Lids
- Canning jars
- Oven
- Rubbing alcohol
- Rag
- Finish nails
- Hammer
Instructions
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1
Turn on the oven to 100 degrees Fahrenheit. This creates a contamination-free zone, as the heat of the oven forces all dirt and impurities from inside.
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2
Clean all your jars and nails with rubbing alcohol.
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3
Drive two finish nails into the insert of the lid to make two holes. Do not remove the nails.
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4
Place the jar with the insert and ring in the oven and remove the nails. This releases the air inside the jar, creating a vacuum. By creating a vacuum, you keep the inside of the jar clean from contamination.
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5
Put cloth tape over the holes to allow air to go into the jar while filtering impurities. Keep the door of the oven open as you perform this step.
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6
Remove the jar from the oven to cool.
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1
Previous:
Growing Mushrooms
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