Comparisons

Where the fan sits, and why it decides how evenly food dries.

The best-known shelf dehydrator brands, model by model.

The two most popular cheap stackers.

When an air fryer's dehydrate mode is enough.

Two stainless shelf models around $160 to $200.

Plastic and a 10-year warranty, or stainless and two-phase drying.

Which Nesco stacker to buy.

Cleaning, weight, price and what touches your food.