Lead time is 4-6 weeksFabricated items that are "In Stock" , E.g.Mushroom Substate Steamers & Fermenters, are made to order.

150 Gallon Mushroom Substrate Steamer

Based on a design by Myers Mushrooms, our substrate steamer is the easiest, most cost-effective solution on the market. Not intended for use with grain spawn.

A typical cycle will take 14-24 hours. Time is dependent on ambient temperature, substrate temperature, and heater wattage.  The 150 gallon model will accommodate almost 600 lbs of substrate. The 150 gallon drums is 51" tall. The larger drum increases capacity but it can be more difficult to load and unload.

  • New 16 gauge 150 gallon Sanitary stainless drum.
  • Temperature & run time controller with heating element
  • Insulated with Armaflex and jacketed with neoprene
  • Vented lid with thermometer
  • False bottom
  • 2” ferrule with clamp for heating element
  • ½” drain with stainless ball valve. 
  • Stainless float/fill valve.
  • Pressure regulator
  • Braided fill hose

The included controller allows you to set the target temp and run time. It features a stainless steel enclosure, indicator lights, safety lockout, and temperature probe. The controller ensures accurate and repeatable results while minimizing electrical consumption and saving time. The controller requires 4-wire 220v power.

A 30 amp rated extension or power lead with a L14-30 connector is required to run the unit at 240 volts. They are readily available from Amazon or your local home improvement store.

Other handy options are available from Myers Mushrooms KIT page.

Watch the Myers Mushrooms video on putting your substrate steamer together. Note that the false bottom design has changed since this video was made. The new system is simpler and self-explanatory.

Watch more videos from Myers Mushrooms.

For more information on our Mushroom Substrate Steamers, check out our steamer FAQ page.

Our drum dollies make moving your loaded or unloaded steamer a breeze.


Height: 51"
Diameter: 30"

Weight: 173 lbs

Weight with a basket: 238 lbs

Drum Dolly Weight: 39 lbs

Steamers ship via motor freight, if you would like a freight quote before purchasing contact us with your zip code and type of address. Shipping to a commercial address or freight terminal is much less expensive than shipping residential. 

We are experiencing longer than usual lead times at present, so if you would like to secure your place in the queue with a 25% deposit, use the coupon code Deposit25 when checking out.

This is a made-to-order item. Before placing order, please note the lead time notice posted at the top and bottom of the page.

Price: $4,264.00
SKU: BM475

Our Current Lead Time is: 4-6 Weeks. If you would like to secure your place in the queue with a 50% deposit, use the coupon code Deposit when checking out.