About Stay Fresh freeze dryer machines
Stay Fresh builds freeze dryer machines for people who want commercial-grade results in a home or small-business setting, without the industrial price tag. Every machine is designed, assembled and serviced at our facility in Gardena, California, and every one runs the same patented drying algorithm — U.S. Utility Patent No. 11,287,185 B1 — which removes moisture consistently while protecting flavour, texture and nutrients.
Our founder, Dr. Tonghu Jiang, started the company in 2018 to close the gap between expensive industrial equipment and underperforming home units. That is still the brief: a freeze dry machine that is powerful enough to be worth owning and simple enough to actually use.
What every model shares
- The patented smart drying algorithm, with drying methods for beginners and for people who want to set everything themselves.
- Candy mode, which chills the shelf to 15°F before the pump and heater start — freeze-dried candy without guesswork.
- A motorised ball valve that keeps pump oil out of the chamber, and an independent vacuum valve for pressure normalisation.
- RTD temperature sensors, an industrial glass-to-metal seal feed-through, and solid state relays that can all be replaced.
- Stainless steel and aluminium construction on the major parts, including the drain line.
- A free accessory bundle: oil filter, 12" impulse sealer, 50 mylar bags, 50 packs of oxygen absorbers, and the Stay Fresh recipe book.
The range
5-Shelf Freeze Dryer — Premier or Commercial pump
The standard home freeze dryer and the model most owners buy. Five trays, 800 sq in of tray space, 12 to 18 lb of fresh food per batch. Choose the Premier pump for ordinary household use or the Commercial pump if you expect to run batches back to back.
7-Shelf Freeze Dryer — Premier or Commercial pump
The same cabinet with two more trays, giving 1,120 sq in. Built for bulky but light loads: herbs, leafy greens, yogurt drops and candy. Dense, high-moisture food can exceed its ice capacity, so if you mostly dry raw meat or soups, the Large is the better machine.
Large Freeze Dryer
1,283 sq in of tray space, 20 to 35 lb per batch and a 25 lb ice capacity, with fans on the shelving unit for faster freezing and zoned heating for tighter temperature control. The step up for a serious garden, a homestead, or a small food business finding its feet.
Mega Freeze Dryer
Our largest machine: up to 50 lb of fresh food per batch, 40 lb of ice capacity and a 10.2 CFM commercial pump. Designed for people selling what they make — candy producers, small manufacturers and community preservation projects.
Choosing a pump
The Premier and Commercial pumps both move 7.2 CFM, so drying speed is unchanged. The Commercial is the heavier industrial unit at 55 lb against 36 lb, fitted with an oil demister and built for continuous use; bought on its own it costs $1,295. The Large and the Mega ship with a Commercial pump only.
Buying from a small American business
We have helped families, preppers, homesteaders and small food businesses take control of their own preservation since 2018. Machines ship on a pallet by freight, carry a one-year full warranty with limited cover on the refrigeration system for up to three years, and can be paid for over twelve months through our layaway programme. U.S. veterans receive an exclusive 10% discount.
If you are weighing up models, the full specifications page puts every number side by side, and we are on 424-420-7534 if you would rather just describe what you want to dry.