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Sterilization and Pasteurization
Prevent contamination by learning how to sterilize or pasteurize your materials.
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Sort: [Name] [Rating] [Date] [Reset]- Correct pressure cooker use
Pressure cookers and canner are important tools in mycological work.
- Sterilization Tips
A few tips on how you can avoid contamination by increasing your sterilization procedures by Ryche Hawk.
- Why do I need 15psi when pressure cooking?
The reason for it is that at a pressure of 15 PSI (pound per square inch) water boils at a higher temperature (250°F, 121°C) than at ambient pressure.
- What is the difference between pasteurization and sterilization of casings and substrates?
The pasteurization is carried out for a prolonged time at around 170°F and is supposed to kill only heat susceptible organisms and their spores, while sterilization works at a temperature of 250°F and is supposed to kill all organisms.
- What is "fractional sterilization" or tyndallization?
Fractional sterilization or tyndallization is a method used to destroy bacteria and endospores in preparation of grain spawn(rye, wheat, millet, birdseed.
- How long will pasteurized bulk substrate last if I don't inoculate it right away?
By pasteurizing many bacteria and some molds still survive in the substrate.
- What is a good way to pasteurize straw and dung?
Put the straw and/or dung into a pillow case, submerge in pot with water with a weight on top at 170°F for one hour.
- Can I stack jars in the pot or in the pressure cooker?
There is no problem with stacking the jars in the pot or in the pressure cooker, as long there is a lid on the pot.
- Oven-Bag Pasteurization Pictorial
A great way for the pasteurization of straw/compost/dung.
- Home Made Alcohol Lamp
Build your own alcohol lamp from easily available materials.
- Sterilize water before dunking?
Do you have to sterilize the water before you dunk your cakes?
- Cybers How to build a bulk steam pasteurizing unit
Steam Pasteurization
- Pressure Cooker Instructions
Rules preclude me from scanning the instruction booklet, (wish I knew this 45 min. ago), but I found this link for all you used weight-type PC buyers out there.
- Tyndallization
How to Sterilize without a pressure cooker
- How to build a large Pasteurizer
How to build a hot water bath pasteruizer