200L Mushroom Autoclave — Commercial Automatic Digital Electric Sterilizer
200L Mushroom Autoclave — Commercial Automatic Digital Electric Sterilizer is backordered and will ship as soon as it is back in stock.
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The 200L commercial autoclave holds roughly 72 three-pound grain bags in a footprint of 26 by 26 inches. That is genuine commercial sterilization volume in a machine that still fits through a standard doorway and lives in a garage, a lab, or the corner of a grow room.
- 723 lb bags per cycle
- 405 lb bags per cycle
- ~6 hrfull cycle, loaded
- 8 kW220/240V heater
- 26×26×51"375 lbs
Set your pressure, temperature, and time, then hit start. Digital control over the cook cycle makes this a dependable set-and-forget machine for daily production, and the chamber is SUS 304 stainless throughout.
Production capacity
| Load type | Approximate capacity | Best for |
|---|---|---|
| 3 lb grain bags | Up to ~72 | Spawn production and high-volume grain prep |
| 5 lb bags | Up to ~40 | Substrate, grain, or larger bag formats |
| Jars, tools, lab supplies | Varies by layout | Agar work, liquid culture prep, equipment |
Actual capacity varies with bag size, fill weight, folding style, basket layout, and the airflow spacing you leave. A full cycle typically runs around 6 hours when loaded, depending on load size, starting temperature, and which venting and cooldown method you use.
Manual bleed control is the upgrade over the 150L
The 200L runs everything the 150L does, and adds control at both ends of the cycle:
- Manual cold air venting at the start — purge trapped air yourself rather than relying solely on the automatic bleed. Trapped air is the most common cause of a chamber that reads at temperature while the load is not.
- Manual slow steam venting at the end — bring pressure down at your own pace instead of on a fixed program.
Controlled venting is what protects filter patch bags on the way down. Dropping pressure quickly bursts them. Having manual control over that descent, rather than one preset speed, is the practical reason growers running mixed bag sizes move up to this unit.
Loading
Four baskets come with the machine: three stainless wire baskets plus a solid basket for the bottom. They lift in and out as units, which makes loading and unloading considerably faster than working loose bags into a deep chamber.
At 51 inches tall this is a top-loading vertical. A step stool is recommended — you will be reaching down into the chamber on every cycle. If that is a concern for daily production, the side-loading B-310L loads at working height instead.
Specifications
| Rated capacity | 200 L class / approx. 210 L actual |
|---|---|
| Chamber size | 24" diameter × 28" tall |
| Exterior dimensions | 26" × 26" × 51" |
| Crate size | 29" × 29" × 52" |
| Weight | Approx. 375 lbs |
| Construction | SUS 304 stainless steel chamber |
| Heating | 8.0 kW electric |
| Power requirement | 208–240V single phase, 40 A |
| Approximate draw | 36 A |
| Baskets | 3 stainless wire, 1 solid lower |
| Venting | Manual and automatic |
| Typical full cycle | Around 6 hours loaded |
| Warranty | 12-month factory warranty |
Power and installation
This autoclave requires a 208–240V, 40 amp single-phase connection. Installation is comparable to wiring a large electric dryer, a kiln, or an EV charger.
- Recommended circuit: 40–50 amp breaker
- Typical connection: NEMA 14-50 plug and receptacle
- Wiring: color-coded leads, configurable for the outlet type your electrician selects
This needs a larger circuit than the 150L. An 8 kW heater is well beyond what a 30 amp dryer-style connection will carry. Have a certified electrician install the breaker, conductor, and receptacle before the machine arrives — professional installation is strongly recommended on a unit at this voltage and draw.
Safety
- Safety-locking lid — stays locked for as long as the chamber is under pressure
- Water level sensor with automatic shutoff — protects the heating element against a dry run
- Over-pressure bleed valve — mechanical relief independent of the controller
Sterilization only — this model does not pasteurize
The 200L does not offer the low-temperature settings required for a true pasteurization cycle. If your program includes straw or bulk substrate you intend to pasteurize rather than sterilize, you need a chamber that holds a lower setpoint — our B-310L and larger models run both processes. For grain spawn, substrate bags, agar, jars, tools, and lab supplies, this machine is fully capable.
Service life and support
Every unit is tested before crating and carries a 12-month factory warranty. Under daily commercial use, expect roughly 2 to 3 years from heating elements and gaskets before replacement — both are stocked in our sterilizer parts collection.
Common questions
How many bags can it hold?
Approximately 72 three-pound grain bags, or 40 five-pound bags, depending on how they are filled and arranged. Jars, tools, and lab supplies vary by layout. Leave airflow spacing rather than packing to the absolute maximum.
How long does a full sterilization cycle take?
Around 6 hours fully loaded, start to finish. That varies with load size, starting temperature, and whether you vent manually or let the machine cool naturally.
How is this different from the 150L?
Considerably more capacity — 72 three-pound bags against 48 — a larger 8 kW heater, four baskets instead of two, and manual bleed control at both ends of the cycle. The 150L vents on a fixed program; the 200L lets you purge cold air at the start and control the steam release at the end yourself. It also needs a considerably larger electrical circuit.
What electrical service do I need?
208–240V single phase on a 40 to 50 amp breaker. A NEMA 14-50 plug and receptacle is the typical setup — the same connection used for EV chargers and electric ranges. The unit ships with color-coded leads that can be configured for whichever outlet your electrician selects.
Why does manual cold air venting matter?
Air trapped in the chamber insulates the load. The result is a chamber that reads at temperature while the center of your bags has not got there, which is exactly how a cycle contaminates despite looking correct on the display. Manual purging at the start gives you a way to be certain.
Can I pasteurize substrate in this unit?
No. The 200L does not hold the lower setpoints a true pasteurization cycle requires. For substrate you intend to pasteurize, look at the B-310L or larger, which run both processes in the same chamber.
Is this a good model for starting a small mushroom farm?
Yes. It is the bridge model — commercial capacity for growers who have outgrown pressure cookers and smaller sterilizers but are not ready for a full commercial system. Consolidating into fewer, larger cycles saves labour and makes your process more consistent.
How does it ship?
This is a commercial freight item, shipped by LTL. Freight is not included in the purchase price — a separate invoice follows by email after your order. Email info@bluemycomfg.com for a shipping quote before placing your order. Local pickup is available; please call ahead to confirm stock. Inspect your shipment on delivery and report any freight damage immediately.
200L Mushroom Autoclave — Commercial Automatic Digital Electric Ste...
