150L Commercial Pressure Sterilizer - Digital Electric Mushroom Autoclave
150L Commercial Pressure Sterilizer - Digital Electric Mushroom Autoclave is backordered and will ship as soon as it is back in stock.
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Description
Description
The Bonsai 150L commercial autoclave is a vertical, digital electric pressure sterilizer built for mushroom farms, labs and serious home growers. Its 150-liter (160-quart) stainless chamber sterilizes up to 48 three-pound grain bags per cycle — about the capacity of six 30-quart stovetop pressure cookers in one machine.
Set the time, temperature, pressure and venting on the digital panel, load the chamber and start the cycle. We run these units daily in our own production, stock them in the U.S., and back every one with in-house technical support from the people who use them.
- 150L160 qt chamber
- 48 bags3 lb grain per cycle
- 6 kW208–240V
- 273°FMax temperature
- 18 moWarranty
Why growers pick the 150L
- Production capacity – 48 × 3 lb grain bags, 24 × 5 lb or 12 × 10 lb substrate bags per cycle.
- Program it and walk away – Digital controls for cycle time, temperature, pressure and venting give repeatable results batch after batch.
- Faster turnaround – Typically reaches pressure in about 45–60 minutes, with natural cooling or automatic controlled venting at the end of the cycle.
- Built for daily use – SUS 304 stainless inner chamber, two stackable stainless baskets and heavy-duty casters.
- Stocked and supported in the U.S. – Ships from our warehouses with free lifetime technical support and replacement parts on the shelf.
The 150L fits a garage or small lab and runs on a standard 30-amp, 240V circuit.
What's included
- Bonsai 150L vertical digital electric autoclave (black lid standard; white lid available)
- 2 × stackable stainless steel baskets
- 6 ft power cord (plug not included — see Power & installation below)
- Heavy-duty caster wheels
How to run a grain cycle
- Add water. Fill the chamber with 4–4.5 gallons of filtered or RO water.
- Load. Stack grain or substrate bags in the two baskets and lower them into the chamber.
- Seal. Close the lid and tighten the clamps. The door locks automatically while the chamber is under pressure.
- Program. For a full load of grain, set 121°C (250°F) for 3–3.5 hours, then start the cycle.
- Cool and unload. Let it cool naturally or use the controlled venting for faster turnaround. Most cycles run about 4–4.5 hours from start to finish.
The 150L quick start guide.
Capacity per cycle
| Bag type | Bag size | Max per cycle | Typical use |
|---|---|---|---|
| Grain bag | 3 lb | 48 bags | Grain spawn production |
| Substrate bag | 5 lb | 24 bags | Fruiting block production |
| Substrate bag | 10 lb | 12 bags | Larger bulk substrate runs |
Specifications
| Specification | Detail |
|---|---|
| Capacity | 150 liters / 160 quarts |
| Chamber | SUS 304 stainless steel, 20" diameter × 30" deep |
| Overall dimensions | 24" × 24" × 46" |
| Unit weight | 320 lbs |
| Heating | 6.0 kW electric, 208–240V, 50/60 Hz, 26–27 A |
| Circuit required | 208–240V, 30 A |
| Temperature range | 212–273°F |
| Maximum pressure | 31.9 PSI |
| Timer | 0–999 minutes |
| Heat-up | Typically 45–60 minutes to pressure |
| Venting | Natural cooling or automatic controlled venting |
| Recommended grain cycle | 121°C (250°F) for 3–3.5 hours |
| Water fill | 4–4.5 gallons filtered or RO water |
| Included | 2 stackable stainless baskets, casters, 6 ft cord |
| Lid color | Black (standard) or white |
| Warranty | 18 months |
Safety features
- Pressure-locking door – Stays locked while the chamber is under pressure.
- Low-water sensor – Automatic shutoff if the water level drops too low.
- Over-pressure relief valve – Added protection against over-pressurization.
- Manual venting option – Vent by hand after the cycle ends if you prefer.
Power & installation
You need a 208–240V, 30-amp circuit. Installation is similar to adding an outlet for a clothes dryer or EV charger. The unit ships with a 6 ft cord and no plug, so you choose the plug and matching receptacle — a 30-amp, 240V configuration such as NEMA 6-30 or twist-lock L6-30. We recommend a local electrician for the initial install.
Support, warranty & parts
| Item | Details |
|---|---|
| Pre-shipment testing | Every unit is tested before it ships |
| Warranty | 18 months — 12-month factory warranty plus 6-month extended warranty on non-wear parts |
| Technical support | Free lifetime support from our in-house autoclave team |
| Gasket | Wear part, typically lasts 6–9 months — 150L replacement gasket |
| Heating elements | About 3 years with daily commercial use — replacement set of 3 |
| Other parts | Temperature sensors and control boards — contact us |
See how it works
How to program, run and operate the 150L commercial autoclave.
Shipping & delivery
Freight to all 50 states is priced at checkout; Canada is by quote. Cross-border freight is quoted individually, so no rate appears at checkout for Canadian addresses — contact us for a rate before ordering. Ordering four or more units? Loads over 1,200 lbs are also quoted individually.
| Shipping detail | Information |
|---|---|
| Lower 48 | Flat-rate freight, $350.00 per unit |
| Alaska & Hawaii | Long-distance freight rate shown at checkout |
| Canada | Freight by quote — contact us |
| 4+ units | Over 1,200 lbs — quoted individually |
| Delivery | Lift-gate delivery to your garage or warehouse |
| Ships from | Woodstock, IL or California |
| Transit | 2–4 business days; the carrier typically calls ahead to schedule |
| Local pickup | Free at our Woodstock, IL location — call ahead to confirm stock |
| At checkout | Leave your best phone number for delivery coordination |
Need a different size?For more capacity, see the 200L commercial autoclave or the Blue Myco 310L, 550L and 1180L. For smaller runs, browse autoclaves & pressure cookers.
Common questions
How much can I sterilize at once?
Up to 48 × 3 lb grain bags, 24 × 5 lb substrate bags or 12 × 10 lb substrate bags per cycle.
What is the sterilization process for grain bags?
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 (250°F) for 3–3.5 hours.
How long does a cycle take from start to finish?
Most cycles take about 4–4.5 hours including heat-up and cooldown. Natural cooling takes longer; the automatic controlled venting gives faster turnaround.
How hard is it to install in my garage?
It is similar to adding an outlet for a dryer or electric car charger. You need a 208–240V, 30-amp circuit and a plug and receptacle of your choice, such as NEMA 6-30 or L6-30. Most electricians can wire it easily.
Does it come with a plug?
No. It ships with a 6 ft cord and no plug so you can match the plug to your receptacle.
Can you ship to Canada?
Yes. Cross-border freight is quoted case by case, so no shipping option appears at checkout for a Canadian address. Contact us with your delivery address and we will price the freight before you order.
Why is there no shipping option when I order several units?
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.
What replacement parts will I need?
The door gasket is a wear part that typically lasts 6–9 months, and the heating elements last about 3 years with daily commercial use. We stock both, and temperature sensors and control boards are available by contacting us.
Why buy from us?
Many competing units ship from overseas with long lead times. We stock our autoclaves in the U.S., run them in our own production, provide in-house technical support, and work with the factory on upgrades that matter to mushroom growers.
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