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NESCO Gardenmaster Dehydrator 4 Tray - HM320

How to Dehydrate Food

How to Dehydrate Food

Freezing Herbs and Drying Herbs

Freezing Herbs and Drying Herbs

  • Cannot be combined with other items in a package, due either to its size or manufacturer packaging.
  • In stock. Ships from our warehouse in Northern California.

NESCO's "Top of the Line" unit! More powerful and larger than any other NESCO dehydrator.

Expands to a giant 30 trays so you can dry large quantities all at once!

1000 watts of drying power means you can dry more, faster. Patented Converga-Flow® fan forces heated air up the exterior pressurized chamber, then horizontally across each individual tray, converging in the center, for fast, even and nutritious drying. No flavor mixing! No need for tray rotation.

Fast, powerful fan! A quiet, 2,400-RPM motor and specially designed 4-1/2 inch fan mean faster, more nutritious drying. Four times faster than dryers that have no fan or motors.

Adjustable thermostat. Different foods need different temperature settings. The adjustable 95-155 F thermostat gives you the flexibility to get the best results.

Vita-Save® Exterior!.The opaque exterior blocks light to retain more of the food's nutrients and vitamins during the drying process.

Expandable to meet your needs. This four-tray unit can be expanded with accessory Add-A-Trays®, up to 30 trays (30 sq. ft.) Drying pressure adjusts automatically to the number of trays.

Gardenmaster accessories listed below are Included FREE

• No-Spill Fruit Roll Sheet. Perfect for drying semi-liquids: soups, sauces, fruit rolls. Has exclusive "no spill" lips.

• Clean-A-Screen®. Flexible screen, allows easy drying of small items such as herbs, spices, and potpourri.

• Jerky Spice Packet and Cure - Make your own jerky at home.

1000 watts of drying power

• Patented Converga-Flow®.
• Adjustable Temperature Control.
Includes 52-page recipe and instruction book, 1 solid sheet, 1 mesh sheet, and 1 packet jerky spice to make great tasting beef jerky or venison jerky.
• 4.5" Fan, 2400-RPM Motor in base of unit.
• Dries in hours, not days. Fruit rolls 3-6 hours, Beef Jerky 4 hours, Apples 4-6 hours, Bananas 5-8 hours, Pineapple 4-6 hours.
• Opaque Vita-Save® Exterior (blocks harmful light).
Expandable to 30 trays. No Tray Rotation, 1 Sq. ft. Per Tray. Tray size 15 1/2" in diameter.

Additional accessories available
Add-A-Trays (set of 2)
Fruit Roll Sheet (set of 2)
Clean-A-Screen (set of 2)

Made in the USA of USA and foreign components.


  • Item Model Number: HM320
  • Shipping Dimensions: 22.5 x 17.125 x 17.5 inches
  • Shipping Weight: 30 pounds

Customer Reviews

First dehydrator - not disappointed

This is the first dehydrator that I've purchased and I am not disappointed with the result. The gardenmaster dries evenly, quickly and you can stack up multiple layers of different food to dehydrate. It also comes with a fruit leather tray and recipe booklet. I made some excellent fruit leather on my first go-around and it never made it out of the kitchen it was so good.

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July 30, 2015 - Meredith Cherry
Few things say “summer” like a juicy slice of melon.  Watermelons, cantaloupes, and other melons are a great addition to the garden.  With a little preparation now, you can be enjoying a… read more »
October 10, 2014 - Peaceful Valley
Preserve your summer harvest to enjoy in the wintertime or anytime—without canning. Try your had at dehydrating your fruits and vegetables. Bet you thought about dried apricots just now! In our video… read more »
Submitted by: Stephanie Brown
Dried Persimmons “The way to eat persimmons for the people who don’t like persimmons.” read more»
January 15, 2013 - Charlotte from Peaceful Valley
Have you ever massaged a persimmon? Hoshigaki massage is one way to preserve persimmons, and enhance their sweetness too. There are many ways to preserve persimmons. In our new video Tricia talks about… read more »