Urban Spore

Pressure Cookers For Mushroom Growing

Choosing The Right Pressure Canner

The pressure canner is an essential requirement for both the production of mushroom grain spawn & working with supplemented substrates. For many of us this foray into mushroom cultivation is our first contact with a pressure canner. Buying a pressure canner for mushroom growing can feel like stepping into the unknown so we have put together this article outlining the features of some of the most commonly purchased pressure cookers.

Note: It’s important to be aware that using a pressure cooker to sterilise mushroom media may void your warranty. Always follow all safety directions as indicated by the manufacturer.

pre-sterilised grain jars for mushroom growing

Presto 23 Quart

The Presto 23 Qt Pressure Canner is one of the most frequently purchased for mushroom cultivation. It should be noted that using the cooker to sterilise mushroom media will void the warranty. The Presto 23 quart pressure canner is made from heavy-duty aluminium & is suitable for use on electric, gas & smooth-top cooktops. Induction suitable models are available as well.

Presto 23 Quart Pressure Canner
  • Heavy-duty aluminium
  • Space for 20 pint jars
  • Suitable for gas & electric cooktops
  • Induction compatible model available

All American 921 21.5 Quart

The All American Pressure Cookers are built to last. Made from heavy duty aluminium & featuring a precision machined, metal to metal, sealing system. Positive action clamping locks form a steam-tight seal without any costly-to-replace gaskets.

All American 921
  • Space for 19 pint jars
  • Metal to metal sealing system
  • Long lasting heavy-duty

All American 941 41.5 Quart

The All American 941 is the next step up from the All American 921. That same high-grade cast aluminium body with precision machined metal to metal seal but with a greater capacity of 41.5 quarts. Made in the USA.

All American 941
  • Heavy-grade cast aluminium
  • Metal to metal seal
  • Space for 32 pint jars
  • Heavy duty & built to last
  • Made in the USA

Instant Pot Max 6 Quart

The Instant Pot Max is compact, easy to use & it won’t scratch your stovetop. The Instant Pot Max features a 6 quart capacity & can reach 15PSI making it suitable or small batch mushroom spawn production. This electric, benchtop style of pressure cooker is easy to operate without the need for a stovetop.

Instant Pot Max 6 Quart
  • No stovetop required
  • 6 quart capacity
  • Compact & easy to operate
  • Can operate at 15PSI

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