Dried apple slices in an air fryer
Fresh — the short answer
50°C (122°F) for 240–300 min
- For
- 150g in total, about 4mm at the thickest point, At room temperature
- In
- Oven-style air fryer, more than one shelf in use
- Preheat
- Not needed
- Check
- The slices are leathery-dry with no cool damp patch in the middle
- Safety
- Plug an air fryer directly into a wall socket. Do not run one from an extension lead. Full rule below.
Four to five hours at 50°C for 150g — the dehydrate setting doing what it is for.
Fresh
The quick answer
50°C (122°F) for 240–300 min
Published range for a stated 150g on air flow racks. Slice thickness is what moves it, and the chart does not state one.
- Assuming
- 150g in total, about 4mm at the thickest point, At room temperature
- In
- Oven-style air fryer
- Loaded
- More than one shelf in use
- Preheat
- Not needed
- Result
- Cooked but dry
Preparation
Slice as evenly as you can and lay the slices flat on the racks without overlapping. No oil. Evenness of the slices matters more than anything else, because a dehydrate cycle offers no chance to correct part way.
No oil needed.
How to load the basket
More than one shelf in use. Shelves receive different amounts of heat and airflow. Rotating between positions part-way through is usually necessary.
How to tell it is done
- The slices are leathery-dry with no cool damp patch in the middle
- They crisp as they cool rather than while they are in the machine
In a different appliance
Multicooker with air fry: 60°C for 360–480 min
Slice thickness and how juicy the variety is. The published preparation is 3mm slices.
Where these figures came from — fresh
- Applies to
- Specific to this model
- Why this rating
- One of very few published dehydrate figures anywhere in the evidence base, for a capability most air fryers now have and almost nobody uses. The chart's silence on slice thickness is the significant gap for a process whose only real variable is thickness.
- Last reviewed
- 2026-08-13
What this does not cover
- Published by the manufacturer for this model. It is evidence about this appliance and is not general advice.
- No slice thickness is stated, and it is the variable that decides the answer. The 4mm in the assumptions is AirfryerHQ's typical figure for the form, not the manufacturer's.
Sources (1)
Breville Halo Rotisserie Air Fryer Oven VDF127 — Instruction Manual (PDF)
Breville (Newell Brands) — Manufacturer manual (United Kingdom)
Relied on for: Apples, 150g, on air flow racks, 4–5 hours at 50°C, no oil.
States this directly
Passage read and verified
Retrieved 2026-08-13 from argos-support.co.uk
Retrieved from Argos's manual library for Argos product 961/3931.
What usually goes wrong
Leathery rather than crisp, or browned. Both come from the same cause: slices cut unevenly, so the thin ones finish hours before the thick ones. Dehydrating has no way to correct mid-course, which makes the knife work before it starts unusually decisive.
Running the appliance safely
These apply to every food and every air fryer, so they are here once rather than repeated under each state above. They come from Electrical Safety First, from UK product-safety notices and from the manufacturers’ own manuals.
- Plug an air fryer directly into a wall socket. Do not run one from an extension lead.
- An unusual smell, an unusual noise, or scorch marks on the plug mean stop using it and contact the manufacturer.
- Do not overfill. Food touching the heating element is a fire risk, not a cooking problem.
- White smoke from fatty food is usually normal. Black smoke means unplug it immediately.
- Do not leave an air fryer running unattended.
- Leave clear space above and around the appliance, and never cover the air intake or the outlet.
- Aim for a golden yellow colour or lighter on starchy foods such as chips and roast potatoes, rather than a darker brown.
- Buy from a reputable retailer rather than a third-party marketplace seller.
- Clean the drawer, the plate and the element after use. Accumulated grease is what smokes, and then what burns.
- Register the appliance with its manufacturer. It is how a recall reaches you.
- Do not rely on the appliance's own thermal protection. A UK recall was issued because it did not operate.
Each links to its own page, with what it means in practice, what to do if it has already happened, and the source it comes from. Every safety rule AirfryerHQ holds.
Why apple behaves this way
Dehydrating is the opposite problem from everything else in this catalogue: the objective is to remove water without cooking, which means staying below the temperature at which the cell structure breaks down and the sugars brown. At 50°C an apple slice loses water steadily over hours while staying pale and keeping its shape. The variable is thickness and nothing else — a slice twice as thick takes far more than twice as long, because the water has to migrate to the surface before it can leave.
Where to go from here
The pages that answer the questions this one tends to raise.
- How food actually gets crispyWhy patting it dry, spacing it out and a little oil are all the same instruction — so you can apply it when a page runs out.
- Why published timings differIf another chart says something else, this is usually why — and which one to believe.