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150L Commercial Pressure Sterilizer - Digital Electric Mushroom Autoclave

Availability: In Stock
Usually ships In 1 Day
Item #: AC150
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5.00 stars, based on 13 13 review(s). | Write a review
Retail: $3,499.00
Price: $2,999.00
You Save: $500.00 (14.3%)

    Our Professional 150L (160 Quart) Mushroom Autoclave is a true commercial grade unit only taking up the space of a small bar refrigerator. This is the sterilization equipment the top labs and commercial mushroom farms use. It has been an industry workhorse for over 15 years and the standard for value, safety, and quality. With digital controls of cook cycle, temperature, pressure and more, its a true "set it and forget it" machine.  Extremely easy to set up and operate. Simply set your sterilizing parameters, PSI, Temperature and Time and hit start! 


    • 150L or 160 Quart size (Equivalent to running 6 All American 30 Quart Stove-top pressure cookers)
    • High Quality SUS 304 Stainless Steel internal construction 
    • 6KW Electric heater (Runs on either 208V/220V/240V, 50/60Hz 26A)
    • Get to pressure in 45 mins! Quick heating means faster turnaround times
    • Sterilize grain spawn perfectly every time!
    • Can sterilize up to 48 3lb Grain bags in one cycle. 
    • Temperature is adjustable and can be used to pasteurize.
    • Available in White or Black Lid 
    • Two stack-able internal baskets make loading and unloading a breeze!
    • Multiple safety features, including a safety door opening mechanism, the door remains locked as long as the chamber is under-pressure. Water level sensor with automatic shutoff & over-pressure bleed off valve. Can be used to manually lower pressure after cycle.
    • Unit measures 24"x24"x46" 320 lbs
    • Internal chamber diameter of 20" and depth of 30"
    • Easily moves with built in caster wheels & 6' power cord.

    Freight Shipping is a flat rate of $350.00 per unit. (Includes lift-gate, delivery to garage or inside warehouse with delivery appointment!)

    We stock these units are in our Woodstock, IL warehouse & California warehouse. As each unit is individually crated, we arrange freight delivery with a lift-gate truck. Please let us know if this is shipping to a residence or a business. We normally use FedEx Freight.  Transit times vary by destination, usually 2-4 business days. Freight company will call or text ahead to schedule a delivery day and time window.

    Please provide the best phone number to reach you at for delivery when you checkout

    Since we own and use 6 of these autoclave daily, our technicians can help with any questions, tech support, installation assistance. Just call and ask to speak with one of our autoclave technicians.

    This autoclave is covered by an 18 Month Warranty. 12 month factory warranty, In addition, we are offering an additional 6 month warranty that covers any non-wear items. The typical life of the gasket is 6-9 months and the heating element with daily commercial use is around 3 years.

    Freight Shipping is a flat rate of $350.00 per unit.  Free Local pickup available, please call ahead to make sure we have stock.

    Customers Also Bought (check to add to cart)

    Our 150L Digital Autoclave is for the most serious Mushroom Grower. The 150L is the best selling vertical autoclave available in this style. With digital controls of cook cycle, temperature, pressure and more, its a true "set it and forget it" workhorse. Simply set your desired temperature, sterilization time and the digital computer controlled PID display will auto bleed air and build pressure to desired PSI, once reached, timer will start. When timer is done machine can be set to slowly exhaust pressure or hold and naturally cool. These autoclaves are extremely efficient and reliable. We also stock replacement parts for all units!

    Great for all types of substrate and grain sterilizing! We use these autoclaves daily to sterilize a variety of products.

    This model can sterilize 48 3lb Grain Bags in a 3 hour cycle! The total time per cycle is around 4-4.5 hours from loading to unloading.

    Volume... 150L - 2 Stack-able Stainless Steel Baskets
    Max Operating Temp       
    ... 273 F
    Max Operating Pressure
    ... 31.9 PSI
    Time Range
    ... 0-999 Minutes
    Temperature Range
    ... 212F - 273F
    Unit Size/Weight
    ...  24"x24"x46" 320 lbs   
    Power... AC220V/240V  50/60hz 6.0KW Heater 27AMP

    All units are tested before crating. These autoclaves are very durable and require very little maintenance or replacement parts over the life span when properly cared for. The heating element life is 3,000 cook cycles.

    Requires a 240V connection. Connecting this autoclave at home is similar to hooking up an electric clothes dryer or vehicle charger. Color coded wires must be connected to a 30 AMP plug and outlet of your choice. We recommend NEMA 5-30 or L630P Female/Male outlet and plug.

    Freight Shipping is a flat rate of $375.00 per unit. Free Local pickup available, please call ahead.

    Frequently Asked Questions

    How hard is this to install in my garage?

    - Installation is the same as installing a new outlet for a dryer or a electric vehicle. We recommend consulting your local electrician to help with that part. The unit comes ready for a plug of your choice. You can purchase a male and female 30 AMP Single Phase plug at any hardware store.

    What is the process to sterilize grain bags?

    - Prepare your grain bags like normal. Remove the two stainless steel baskets, add around 4 -4.5 Gallons of filtered water. Load your grain bags in a circular pattern stacking to the top. You can load them any way you would like. Once grain bags/jars are loaded close the top and tighten the clamps. We recommend starting with control panel settings of 121° Celsius and 3 hours and 30 minute sterilization time when full. The other option is whether you want it to shut off and cool down naturally when finished or a computerized slow vent. The slow vent option takes about 20 minutes to exhaust pressure and is nice for doing back to back cycles

    How long does it take to cool after sterilizing?

    - There are two options after the cook cycle is done. The first option is for the machine to turn off and slowly cool naturally. This takes about 3-4 hours. The second option is a computerized slow venting of the pressure. This option is great for running the machine back to back. The autoclave will slowly exhaust the pressure in about 15-25 mins.

    How much are replacement parts and do you stock them?

    Since we own and operate 6 units we have most parts in stock. If not we can order and have any part within 1 week.

    Replacement Part Pricing: (Please Call to order)

    Silicone Lid Gasket: $60.00

    6kw Heating Element: $249.00

    Temperature Sensor: $99.00

    Why buy from us?

    There are many vendors selling similar units and although you may see a lower price, these are usually for units in stock overseas and will take 8-12 weeks to arrive. We have been in business for 12 years and can fully support you with technical issues, questions and warranty issues. We stock many parts and if something fails we can get you back up in running in matter of days. We work directly with the factory and have customized the units we sell to include a few upgraded components that make these units run better for use in our industry. The auto-venting settings have been adjusted at the factory to minimize exploding bags.

    How much substrate or grain can I sterilize at once?

    - The 150L Model can sterilize 128-140 lbs of grain or substrate per cycle, depending on the bag size and loading configuration. The inner chamber size is approximately 20.5" wide X 29.5" Tall. We have some clients who do not use the inner baskets and can fit a little more product per cycle.

    This video talks about all the basics on general operation, programming a cook cycle, loading, unloading and specifications. 

    This autoclave is covered by a 12 month warranty. The 12 month period starts from the date of delivery. In addition, we are offering an additional 6 month warranty that covers any non-wear items.  We offer Free technical support for the life of the autoclave. 

    Overall Customer Rating of 13 Reviews:
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    Great tech support!

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    • Extreme knowledge of these units
    • willing to help
    • easy to talk to someone
    I can't say enough about the tech support team they have here, I did not even buy one from them and purchased one of these used on Facebook Marketplace and was having an issue with an error code i could not find any answers to. I called and one of the techs walked me through. Turns out I was not adding enough water! DUH! You guys saved my week! I WILL BUY ALL MY SUPPLIES FROM YOU NOW<> THANK YOU! LOVE U GUYS! IF YOU ARE CONSIDERING ONE, BUY ONE HERE! YOU WONT REGRET IT

    Excellent shipment with care

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    I bought 150 L vertical autoclave and the product was packed with care. The autoclave arrived without any damage.
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    The place to buy!

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    I purchased one back in January of 2023 and been running this 2-3 times a day, everyday! I just started noticing the heat up time was taking much longer. I contacted Midwest and spoke with their main autoclave tech, he quickly troubleshooted it and suggested I get a new thermostat. What is amazing is they stock all these parts in Chicago and I only paid $44 for overnight shipping! They didnt even charge me for the part! THANK YOU! Replacing it was easy as removing a side panel, unplugging one and plugging the new one in, and tighten with a wrench. 5 mins! It now runs like new! I didnt realize how corroded my old one got! Anyone who is on the fence about where to buy one of these should look no further! Their support and knowledge and the fact that I could get a part next day was MIND BLOWING!


    Not as intimidating as you think!

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    I learned how to use it in one morning after reading the directions and watching some videos. Very good quality autoclave and shipped fast. Just make sure you set your vent settings right! 1 = Slow vent 0= Natural cool down, no venting.

    Fast freight shipping with appointment!!

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    Great unit, great tech support! Midwest knows their autoclaves! I was walked through every step and they also gave me tips on how to best use the machine with my bag type! 5*** Service all the way!