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Freeze Dryer Cost Calculator: Cost per Pound and Payback

Pick a machine size, then change any number that doesn't match your kitchen. The page works out the cost of one batch, the cost per pound of dry food, what a month of use costs, and how long until the machine pays for itself against buying freeze-dried food. Every line of the math is printed under the result, so you can check it or argue with it.

Leave the fields marked "blank = preset" empty to use the figures for the size you picked.

Machine
One batch
Running costs
Food
Pays for itself in
12.9 months

Medium at 4 batches a month, against store-bought at $75.00/lb.

Cost per batch
$47.47
Per lb of dry food
$37.98
Running cost a month
$39.90
With food, a month
$189.90

The math, line by line

  1. Electricity: 1,100 W × 24 h ÷ 1,000 = 26.4 kWh × $0.18 = $4.83
  2. Pump oil: $16.00 ÷ 25 batches = $0.64
  3. Packaging: 5 bags × ($0.50 + $0.40) = $4.50
  4. Food: 12.5 lb × $3.00 = $37.50
  5. Cost per batch: $4.83 + $0.64 + $4.50 + $37.50 = $47.47
  6. Dry food: 12.5 lb × 10% = 1.25 lb
  7. Per lb dry: $47.47 ÷ 1.25 lb = $37.98 (without food: $7.98)
  8. Same food store-bought: 1.25 lb × $75.00 = $93.75
  9. Saved per batch: $93.75 − $47.47 = $46.28
  10. Running cost a month: $9.97 × 4 = $39.90
  11. Payback: $2,395 ÷ ($46.28 × 4) = 12.9 months

Send this result to someone: the address bar holds every input.

More detail: how much it costs to run a freeze dryer (electricity by model and rate), how many pounds per tray and per batch, is a freeze dryer worth it at 1, 2 or 4 batches a month, freeze-dried candy: cost per bag and what to charge, oil changes against an oil-free pump, and freeze dryer against dehydrator cost per pound.

Where the preset numbers come from

I opened each of these on 2026-10-15. Prices and specs change, so treat every preset as a starting point and type your own.

  • Power and capacity: the Harvest Right FAQ says the small and medium draw "on the average about 9 to 11 amps (990-1210 watts)", the large about 1,500 W and the X-large about 1,700 W. Fresh food per batch is 6–10 lb (small), 10–15 (medium), 18–27 (large) and 40–50 (X-large). Most foods take "between 13 hours and 35 hours".
  • Oil: the same FAQ says the Premier oil pump needs an oil change "every 20–30 batches", the Standard pump "every 4–5 batches". The $16 default is close to Harvest Right's own bottle of pump oil ($15.98); the shop doesn't list how much a bottle holds, so put in what one change costs you.
  • Prices: Trimleaf list prices of 2026-10-17, from Trimleaf's freeze dryer cost guide, a Harvest Right reseller, in October 2026. Powder coated: $1,795 (small), $2,395 (medium), $3,095 (large) and $1,399 (Countertop 360). The X-large is $4,995 in stainless steel. Stainless costs $100–500 more on the other models. Sales and bundles change these, so type what you pay.
  • Harvest Right's own site, October 18, 2026 (prices change often): black Home Freeze Dryer small $1,895 on sale ($2,495 compare-at), medium $2,395 ($3,195), large $2,995 ($3,895). Stainless: small $2,395, medium $2,795, large $3,395, X-large $4,995. The presets stay at the Trimleaf list prices; type the one you pay.
  • Countertop 360: four trays, about 1,600 W and 5–9 lb of fresh food per batch (the preset uses the 7 lb middle), as Trimleaf quotes Harvest Right. I couldn't find its tray area, so the per-tray page leaves it out.
  • Packaging: Harvest Right sells 50 mylar bags (8 × 12 in) for $24.99, about $0.50 each, and 50 oxygen absorbers for $19.99, about $0.40 each. One bag per tray is my own guess; count yours.
  • Electricity: the EIA's table of average electricity prices puts U.S. residential power at 18.31 cents per kWh for July 2026. Your bill has your own rate.
  • Dry weight: Iowa State Extension's AnswerLine writes that "a 10-pound bag of fresh apples weighs about one pound after freeze drying". That's the 10% default. Foods with less water to begin with keep more of their weight, so weigh a full tray before and after.
  • Store price: Mountain House diced chicken (14 servings of 34 g for $77.99) works out to about $74 per pound, and I use $75 as the default. Store prices vary by product and retailer, so put in your own number.
  • Fresh food at $3 per lb is a placeholder with no source behind it. It moves the answer a lot.

Worked examples

Three setups run through the same code. Open one to see it filled in above.

SetupPer batchPer lb dryPayback
Medium, 4 batches a month, default costs $47.47 $37.98 12.9 months
Large, 2 batches a month, cheap power (12 cents) $77.86 $34.60 17.0 months
Small, 1 batch a month, store price $40/lb $33.07 $41.34 never

The third row shows how much the store price matters. At $40 a pound, the small machine's food costs $41.34 a pound to make, more than buying it ready-made, so it never pays back.

What this calculator leaves out

It compares money only. It doesn't count your time, repairs after the warranty, a new circuit if you need one, trays or a sealer bought later, or the resale value of the machine. Payback assumes you would otherwise buy the same food ready-made. If you wouldn't, the saving is smaller than shown.

It says nothing about how long food keeps or how to store it safely. For that, read your machine's manual and a food preservation source such as your local extension office.

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