Midwest Grow Kits
150L Commercial Pressure Sterilizer - Digital Electric Mushroom Autoclave
150L Commercial Pressure Sterilizer - Digital Electric Mushroom Autoclave
150L Commercial Pressure Sterilizer – Digital Electric Mushroom Autoclave
Freight shipping: United States at checkout, Canada by quote. Freight rates for all 50 states, including Alaska and Hawaii, are shown at checkout. We can also ship to Canada, but cross-border freight is quoted individually — please contact us for a rate before ordering. No shipping rate will appear at checkout for Canadian addresses.
Ordering four or more units? Loads over 1,200 lbs are quoted individually, so no rate will appear at checkout — contact us and we will price the freight for you.
Our Professional 150L (160 Quart) Mushroom Autoclave is a true commercial-grade unit that delivers serious sterilization power in a compact footprint. Trusted by commercial mushroom farms, labs, and production growers for more than 15 years, this model has earned a reputation as an industry workhorse for its combination of capacity, reliability, and ease of use. We offer industry leading technical support. We use these daily and our technicians are happy to help with any questions you may have.
With digital controls for temperature, pressure, venting, and cycle time, this unit is designed to simplify daily production. Just program your sterilization settings, load the chamber, and start the cycle. It is ideal for grain bags, substrate bags, lab tools, and other materials that require dependable steam sterilization with repeatable results.
Why growers choose this unit: It offers the capacity of multiple stovetop sterilizers in one machine, heats quickly, runs on a commercial or home 208v-240v electric systems, and is easy to load, program, and maintain for routine production work.
Key Features at a Glance
| Feature | Details |
|---|---|
| Capacity | 150L / 160 quarts — approximately equal to 6 All American 30 Qt stovetop pressure cookers |
| Chamber Material | High-quality SUS 304 stainless steel inner chamber |
| Heating Power | 6.0kW electric heater (208V–240V, 50/60Hz, 26–27 AMP) |
| Heat-Up Time | Typically reaches pressure in about 45-60 minutes |
| Controls | Digital controls for time, temperature, pressure, and venting |
| Venting Options | Manual or automatic faster controlled pressure venting |
| Included Accessories | Two stackable stainless steel baskets included |
| Mobility | Heavy-duty caster wheels and 6 ft power cord |
| Finish Options | Available with black or white lid- Black is default |
Technical Specifications
| Component | Specification |
|---|---|
| Overall Dimensions | 24" × 24" × 46" |
| Unit Weight | 320 lbs |
| Internal Chamber Size | 20" diameter × 30" deep |
| Maximum Temperature | 273°F |
| Maximum Pressure | 31.9 PSI |
| Temperature Range | 212°F–273°F |
| Time Range | 0–999 minutes |
| Recommended Full Grain Cycle | 121°C for 3.5 hours |
| Recommended Water Fill | 4–4.5 gallons filtered or RO water |
Capacity Chart
This chart shows the standard maximum bag capacity for common grain and substrate bag sizes in the 150L chamber.
| Bag Type | Bag Size | Maximum Capacity Per Cycle | Typical Use |
|---|---|---|---|
| Grain Bag | 3 lb | 48 bags | High-output grain spawn production |
| Substrate Bag | 5 lb | 24 bags | Standard fruiting block production |
| Substrate Bag | 10 lb | 12 bags | Larger bulk substrate runs |
Safety Features
- Pressure-locking door remains locked while the chamber is under pressure
- Low water level sensor with automatic shutoff protection
- Over-pressure relief valve for added operational safety
- Optional manual venting after the cycle ends
Shipping & Delivery
| Shipping Detail | Information |
|---|---|
| Shipping Availability | All 50 states quoted at checkout. Canada available by freight quote — contact us for a rate before ordering |
| Freight Rate | Flat-rate freight shipping: $350.00 per unit to the lower 48 |
| Alaska & Hawaii | Long-distance freight rate is shown automatically at checkout |
| Large Orders | Four or more units (over 1,200 lbs) are quoted individually — contact us and we will price the freight |
| Delivery Service | Includes lift-gate delivery to garage or warehouse |
| Ship From | Woodstock, IL or California warehouses |
| Transit Time | 2–4 business days in transit; carrier typically calls ahead to schedule delivery |
| Pickup Option | Free local pickup available at Woodstock, IL location; please call ahead to confirm stock and availability |
| Important Checkout Note | Please leave your best phone number at checkout for delivery coordination |
Support & Warranty
| Support Item | Details |
|---|---|
| Pre-Shipment Testing | Tested prior to shipment |
| Warranty Coverage | 18-month warranty included — 12-month factory warranty + 6-month extended warranty on non-wear parts |
| Gasket Lifespan | Typically 6–9 months |
| Heating Element Lifespan | Approximately 3 years with daily commercial use |
| Technical Support | Free lifetime technical support from our in-house autoclave team |
| Replacement Parts | Most replacement parts are stocked and ship quickly when needed |
Power Requirements
- 208-240V / 30 AMP connection required
- Installation is similar to wiring a clothes dryer or EV charger
- We recommend using a NEMA 5-30 or L6-30P plug/outlet
- A local electrician is recommended for initial installation
- Must purchase male or female plug/outlet of your choice to use.
Frequently Asked Questions
Q: Can you ship this to Canada?
A: Yes. Cross-border freight is quoted case by case rather than sold at a flat rate, so no shipping option will appear at checkout for a Canadian address. Contact us with your delivery address and we will price the freight for you before you order.
Q: I want to order several units — why is there no shipping option?
A: Automatic freight rates cover loads up to 1,200 lbs, which is three units. For four or more, contact us with your address and quantity and we will quote the freight directly.
Q: How hard is this to install in my garage?
A: Installation is similar to adding an outlet for a dryer or electric car charger. Most electricians can wire it in easily, and the unit comes ready for a standard 30AMP connection.
Q: What’s the sterilization process for grain bags?
A: Add 4–4.5 gallons of filtered or RO water, load the grain bags in stacks, tighten the clamps, and start the cycle. For a full load, we recommend 121°C for 3-3.5 hours.
Q: How long does a cycle take from start to finish?
A: Most cycles take about 4–4.5 hours total, including heat-up and cooldown. You can use natural cooling for a longer cool-down period or computerized slow venting for faster turnaround.
Q: How much can I sterilize at once?
A: This unit can handle up to 48 × 3 lb grain bags, 24 × 5 lb substrate bags, or 12 × 10 lb substrate bags per cycle.
Q: What do replacement parts cost?
A:
- Silicone Gasket: $60
- Heating Element: $249
- Temperature Sensor: $99
- Control Boards (Call to order)
Q: Why buy from us?
A: Many competing units ship from overseas with long lead times. We stock our autoclaves in the U.S. for faster delivery, provide in-house technical support, and work with the factory on performance upgrades that improve real-world results for mushroom growers.
See How it Works!
See how to program, run, and operate the 150L commercial autoclave in the video below.
- All-in-one, ready to grow
- Produces multiple flushes
- High-quality, USA-made
- Great for home or classroom use
Couldn't load pickup availability
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