Here’s the thing worth knowing before you shop: Breville doesn’t actually sell a standalone dehydrator. What gets called the “Breville dehydrator” is a dehydrate setting built into their multi-function countertop ovens — primarily the Smart Oven Air Fryer Pro and the Joule Oven Air Fryer Pro. That’s not a knock against it, but it changes what kind of buying decision you’re actually making, and it’s worth understanding before you compare it against a dedicated unit like Excalibur or Cabela’s.
Pros
- 13 cooking functions in one appliance — genuinely replaces several single-use gadgets
- 2-speed convection fan with PID temperature control for more precise heat than a basic dehydrator dial
- Large 1 cu. ft. interior fits full sheet pans, not just dehydrator-specific trays
- Element IQ’s six independent quartz heating elements distribute heat more evenly than a single element
- Optional mesh basket accessory improves airflow for dehydrating specifically
Cons
- Capped at 4 trays — well below what dedicated 9–10 tray dehydrators offer
- Not purpose-built for dehydrating, so long unattended cycles compete with the oven’s other uses
- Higher price than a comparable dedicated dehydrator if dehydrating is your primary use case
- Electricity cost adds up on long cycles — some owners report pulling batches early over running cost concerns
In This Article
Key Specs
| Spec | Detail |
|---|---|
| Dehydrate Capacity | Up to 4 trays |
| Interior Size | 1 cubic ft. |
| Airflow System | 2-speed convection fan (Super & regular) |
| Temperature Control | Element IQ with PID sensing, 6 independent heating elements |
| Total Functions | 13, including dehydrate, air fry, roast, bake, proof, and slow cook |
| Recommended Accessory | Mesh Baskets (sold separately), 3-piece set |
Dehydrating Performance
The standout feature here isn’t raw dehydrating power — it’s temperature precision. Breville’s PID (proportional-integral-derivative) temperature control is a more sophisticated system than the basic on/off thermostats found in most budget dehydrators, and it’s paired with six independent quartz heating elements under Element IQ that redirect heat where it’s needed rather than relying on a single fixed element. In practice, that means less temperature drift over a long cycle than you’d get from an entry-level stackable dehydrator.
The 2-speed convection fan is the other piece worth noting. “Super” convection mode pushes more air volume for faster, more even heat distribution — genuinely useful for dehydrating, where consistent airflow across all trays matters as much as temperature. It’s not the same as the horizontal Parallex-style airflow found in the Excalibur 10-Tray, but it’s a meaningfully better airflow setup than a basic single-speed fan.
The included racks work fine for larger items, but small or crumbly foods (herbs, thin fruit slices) benefit from the separately sold Mesh Baskets accessory or a solid liner sheet — without one, smaller pieces can slip through gaps in the standard racks. See my dehydrator sheets guide for liner options that fit standard oven racks.
The Capacity Tradeoff
Four trays is a real ceiling, and it’s the main thing to understand before buying based on the dehydrate function alone. That’s roughly in line with a compact dedicated unit like the LEM 5-Tray Digital Dehydrator, not a full-size horizontal-airflow machine. If you’re planning to process large batches of jerky or a big seasonal harvest, this isn’t the right tool — see my 10-tray capacity planning guide for what actually needs that scale.
Breville vs. a Dedicated Dehydrator
The honest comparison isn’t Breville versus Excalibur — it’s whether you want a dehydrate function bundled into an oven you’re already buying, or a dedicated appliance solely for dehydrating. If you already need a high-quality toaster oven or air fryer, the dehydrate function is a genuinely useful bonus that saves counter space and money compared to buying two separate appliances. If dehydrating is your primary goal and you don’t need the other 12 functions, a dedicated unit will out-perform it on capacity and cost less per tray of drying space. This is the same tradeoff covered generally in my dehydrator machine buying guide under combo appliances.
Who This Is For
- Good fit: anyone who wants a high-end toaster oven/air fryer and sees dehydrating as a useful extra, not the main purpose of the purchase. Also a solid fit for small kitchens where counter space for a second dedicated appliance isn’t realistic.
- Not a fit: anyone whose primary goal is regular, high-volume dehydrating — jerky makers, gardeners preserving bulk harvests, or anyone who’ll run dehydrate cycles multiple times a week. A dedicated unit will be cheaper to operate and far higher capacity for that use case.
Frequently Asked Questions
No. Breville’s dehydrating capability comes as one of several functions built into their multi-function countertop ovens, primarily the Smart Oven Air Fryer Pro and Joule Oven Air Fryer Pro, rather than as a dedicated single-purpose appliance.
It’s enough for occasional or small-household use, similar to a compact dedicated dehydrator. For regular jerky making or bulk harvest preservation, a higher-capacity dedicated unit will serve you better.
Generally not, if dehydrating is your only goal — a dedicated dehydrator will offer more capacity for less money. It makes more sense if you also want or need a high-end multi-function oven and see dehydrating as a bonus feature.
Bottom Line
Breville’s dehydrate function is genuinely well-engineered — the PID temperature control and convection fan are a cut above what most budget-dedicated dehydrators offer at a similar price point. But it’s a secondary feature on a multi-function oven, not a purpose-built dehydrator, and the 4-tray ceiling reflects that. Buy it for the oven and treat dehydrating as a bonus; don’t buy it expecting dedicated-dehydrator capacity.
