Stay Fresh Mega review: the largest, and the least documented

Stay Fresh largest unit at $5,355 in a 220-240V EU build. The clearest large-machine option in Europe, and the least specified machine we cover.

Stay Fresh largest unit at $5,355 in a 220-240V EU build. The clearest large-machine option in Europe, and the least specified machine we cover.

Twenty-five pounds per load on 13x18 in trays for $1,000 more than the Medium. Better value per pound - but it wants a dedicated 20A circuit.

Pure fats, honey, syrup and jam will not dry - there is no free water to sublimate. High-fat foods dry then go rancid, wasting the cycle.

Chilli, stew and pasta sauce rehydrate almost perfectly. Trim the fat before cooking, spread no thicker than 15 mm, and write the water quantity on the bag.

Strawberries at 10 to 12 mm are the best first batch. Pierce waxy skins, acidulate pale fruit, and blanch most vegetables before drying.

Raw meat dries well and stores for years but must be cooked after rehydrating. Choose lean, slice 10 to 12 mm, and expect a second dry.

Blend eggs raw, pour to 8 to 10 mm on mats, then powder. Eggs keep 5 to 10 years, whole milk 2 to 5. Fat content is what limits every figure.

Skittles, taffy and Jolly Ranchers puff dramatically and turn crunchy. Chocolate and gelatine gummies do not. Silicone mats are essential.

A three-stage filter catches the oil aerosol a rotary vane pump vents. Essential indoors, optional in an open garage, and free with the Commercial pump.

Oil-filled is cheaper and reaches deeper vacuum. Oil-free needs no maintenance and is quieter. The five-year cost depends entirely on the oil interval.

Use the specified grade, judge by colour rather than counting cycles, and change it warm. Milky oil is water and it is not lubricating.

Add 80% of the water you removed, warm not boiling, and wait two to five minutes. Start lower and add - you cannot take water back out.