Free tool
Freeze Dryer Cost Calculator
"Is it worth it?" is a math question, and most of the pages answering it sell freeze dryers. Every assumption here is yours to edit - the calculator just does the arithmetic honestly.
your actual quote, delivered
US average is about $0.17
owners report roughly 25-45
be honest - underuse kills the math
medium units run ~7-10 lb
typical #10-can equivalent $30-45
oil, filters, mylar, absorbers
Your cost per lb
$1.12
$8.95 per batch ($5.95 electricity)
Monthly savings
$1,626
vs buying at $35.00/lb
Machine pays for itself in
2 mo
at your batch pace
The comparison assumes you would otherwise BUY freeze-dried food. If you would just eat fresh or can it instead, the honest savings are smaller - the machine buys capability first, savings second.
Where the default numbers come from
The electricity default (35 kWh per batch) sits in the middle of what owners report - roughly a dollar and a half to four dollars of power per load depending on local rates, with worst cases into the teens. The per-pound price for store-bought freeze-dried food reflects typical #10-can pricing when broken down by weight. The consumables line covers vacuum-pump oil, filters, mylar, and absorbers. All of them drift with your machine, climate, and utility - which is exactly why they are inputs and not fine print.
The honest caveat about "savings"
Break-even math assumes you would otherwise buy commercial freeze-dried food. Most households would not - they would can it, freeze it, or just eat it fresh. If that is you, a freeze dryer is less a money-saver than a capability purchase: decades-stable milk, eggs, meals, and garden gluts that no other home method can touch. Owners who run it constantly love the math; owners who run six batches and park it do not. Be honest with the batches-per-month field and the calculator will be honest back.
Costs that are not in the math
Batches run one to two days, the pump wants oil changes, the machine wants a cool room and a dedicated circuit, and it is not a quiet appliance. None of that shows up in cost per pound, and all of it shows up in whether you actually keep the machine fed - our freeze dryer guide covers what owners say about living with one.
The machine and the consumables in the math
What the per-batch line actually buys.
Harvest Right
Harvest Right Medium Home Freeze Dryer
The machine the math is usually about. Sold direct rather than on Amazon; our full review covers what owners report on reliability, noise, and living with the batch cycle.
5-Gallon Mylar Bags + 2000cc Absorbers (15-Pack Kit)
Freeze-dried food only keeps for decades if it is packed right - mylar plus a correctly sized absorber is the ongoing consumable this calculator budgets for.
JB Industries Black Gold Vacuum Pump Oil (Quart)
Oil-pump machines drink this - owners change it as often as every few batches. It is the line item that surprises new owners, so it is in the per-batch consumables field above.
LinsKind 300cc Oxygen Absorbers (120-Pack)
For jar and 1-gallon-bag portions of finished batches. Buying absorbers in sealed 10-packs keeps the spares fresh between runs.
SEELAUGH 16-Inch Impulse Sealer
Every batch ends at the sealer. A 16-inch impulse model closes 5-gallon mylar in one pass and outlasts the clothes-iron trick by years.
The Preserving Kitchen is reader-supported. When you buy through these links we may earn a commission, at no extra cost to you. As an Amazon Associate we earn from qualifying purchases.