Dehydrator trays: do you really need stainless steel?
Stainless trays are easier to clean, take heat better and cost more. For fruit, herbs and light use, good plastic trays are fine.
Stainless trays are easier to clean, take heat better and cost more. For fruit, herbs and light use, good plastic trays are fine.
Where stainless earns the money
It does not warp. Plastic trays run at 60 to 70 C for eight hours at a time, and cheap ones bow after a couple of seasons, which lets air slip past instead of moving across the food.
It also cleans properly. Sticky fruit puree and marinade come off steel with a brush, while plastic holds smells from garlic, fish and jerky marinade for a long time.
Where it does not
Steel does not dry food faster or more evenly. That comes from the fan and the shape of the cabinet, not the tray material.
If you dry apples, herbs and the occasional batch of jerky a few times a year, a good plastic tray machine will do the same job for a third of the price.
The plastic question people actually mean
Most machines use food safe polypropylene, and manufacturers state that trays are BPA free. If that is the worry, check the manual for the plastic type rather than paying for steel you do not otherwise need.
The practical downside of plastic is staining and smell retention, not a safety issue in the machines sold with that documentation.
What to spend the money on instead
A rear fan, an accurate thermostat and a timer that shuts the machine off change your results more than tray material does.
If you dry every week, or you dry a lot of meat, stainless is worth it. If you dry in bursts around a harvest, put the budget into capacity and airflow.
| Stainless trays | Plastic trays | |
|---|---|---|
| Cleaning | Brush, dishwasher safe | Holds marinade smells |
| Durability | Does not warp | Can bow after heavy use |
| Price | Roughly 2 to 3 times more | Entry level friendly |
| Drying speed | No difference | No difference |
| Best for | Weekly use, meat | Fruit, herbs, occasional batches |
Safety note. Tray material is not a food safety question in machines sold with food contact documentation. Follow the manufacturer's stated maximum temperature for the trays you have.
What this is based on
- Manufacturer specifications and manuals for the machines on our comparison table
- Published owner reports on tray warping and staining
- University extension guidance on equipment selection