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Commercial dehydrator: what to check before a big batch

By the Plain Prepper editors. Updated 2026-10-15.

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Quick answer

Before buying a large many-tray dehydrator such as LEM's 16-tray BigBite, compare drying area, temperature range, airflow and watts. A 1,200 W unit draws about 10 amps at 120 V. If you plan to sell food, ask your health department first: FDA's model Food Code treats equipment certified for sanitation to an ANSI standard as compliant. For jerky, USDA says to heat meat to 160°F before drying.

Three large dehydrators compared

Spec	LEM BigBite 16-Tray (1732)	Magic Mill MFD-9100	Magic Mill DualZone MFD-8080
Trays	16 stainless, 14.65 x 11.7 in	15 extra-large stainless	16 stainless, 8 per chamber
Drying area listed	19 sq ft	Not listed	Over 1,500 sq in (about 10.4 sq ft)
Heater listed	1,200 W	800 W	Not listed
Temperature	95 to 176°F	95 to 167°F	95 to 176°F per chamber
Timer	30 minutes to 24 hours	Up to 48 hours	Up to 48 hours per chamber
Airflow	Dual rear fans, horizontal	Rear fan	Rear fan per chamber

LEM's figure checks out with plain arithmetic: 14.65 x 11.7 in is about 171 sq in per tray, and 16 trays come to about 2,740 sq in, or 19 sq ft. The DualZone runs two separate chambers, so you can dry two foods at different temperatures at once.

What commercial does and does not tell you

The three makers above describe their units as home appliances that suit big batches: LEM calls the BigBite professional-quality drying at home, and Magic Mill says the DualZone is enough for a garden harvest or a small cottage food business. The word commercial on a listing is not, by itself, a health-department approval.

FDA's Food Code, a model code FDA offers to state and local governments, says food equipment certified or classified for sanitation to an American National Standard by an ANSI-accredited certification program is deemed to meet its equipment materials and design rules. If you plan to sell dried food, ask your local health department which rules apply and whether your dehydrator needs that kind of certification. Magic Mill lists ETL certification for safety on the MFD-8080; that is not the same as sanitation certification to a food equipment standard.

Power: watts, amps and your circuit

Big dehydrators run for many hours, so check the load. Plain arithmetic at 120 volts:

• 800 W (Magic Mill MFD-9100): about 6.7 amps.
• 1,200 W (LEM BigBite 16-Tray): about 10 amps.
• 2,000 W, a figure some large listings show: about 16.7 amps, which is more than a 15-amp circuit is rated for.

Add anything else on the same circuit, such as a fridge or microwave. If you are not sure what a circuit can carry, have a qualified electrician check it rather than running a long batch on a shared outlet or extension cord. LEM lists a 4 ft cord on its 16-tray unit, so plan where it will sit.

Jerky in volume: the USDA step most manuals skip

USDA's Food Safety and Inspection Service says pathogens are likely to survive the 130 to 140°F of a typical food dehydrator. Its Meat and Poultry Hotline recommends heating meat to 160°F and poultry to 165°F before dehydrating, and notes most dehydrator instructions do not include that step.

• Cook strips to temperature first, then dry them.
• Use a food thermometer to confirm the internal temperature.

All three units above reach at least 165°F on their top setting, but USDA's point is to heat the meat before drying, not to rely on the dehydrator's setting alone.

Choosing among large units

• Most area: LEM's 16-tray lists the largest stated area of the three (19 sq ft) and the highest listed wattage.
• Two foods at once: the DualZone's two chambers each have their own temperature and timer.
• Long runs: Magic Mill's MFD-9100 and MFD-8080 list timers up to 48 hours; LEM's tops out at 24.
• Cleaning: LEM lists dishwasher-safe trays and drip tray, and Magic Mill lists dishwasher-safe trays on the MFD-9100.
• Space: LEM lists 17.32 x 15.94 x 20.59 in; measure your counter and the clearance for the door before ordering.

What to look for when you buy

Questions people ask

What is a commercial dehydrator?

On most listings it means a large, many-tray unit; for selling food, your health department decides which equipment rules apply.

Do I need an NSF or certified dehydrator to sell dried food?

Ask your local health department. FDA's model Food Code treats equipment certified for sanitation to an ANSI standard as meeting its equipment rules.

How many amps does a large dehydrator use?

Divide watts by volts: a 1,200 W unit draws about 10 amps at 120 V, and a 2,000 W unit about 16.7 amps.

Is a dehydrator hot enough to make safe jerky?

USDA says to heat meat to 160°F and poultry to 165°F before drying, because a dehydrator's 130 to 140°F may not kill pathogens.

Sources

• BigBite 16-Tray Stainless Steel Dehydrator, LEM Products
• Magic Mill Food Dehydrator Machine 15 Stainless Steel Trays MFD-9100, Magic Mill
• Magic Mill Premium DualZone Food Dehydrator, 16 Stainless Steel Trays (MFD-8080), Magic Mill
• Food Code 2022, section 4-205.10, U.S. Food and Drug Administration
• Jerky and food safety, USDA Food Safety and Inspection Service

Sources checked 2026-10-15.