Mixed vegetables in an air fryer

Fresh — the short answer

180°C (356°F) for 10–20 min

For: 400g in total, about 25mm at the thickest point, From the fridge
In: Basket air fryer, single layer, pieces not touching
Preheat: Not needed
Check: A knife goes in with no resistance at the thickest piece
Safety: Plug an air fryer directly into a wall socket. Do not run one from an extension lead. Full rule below.

Moderate confidenceWell supported, but from a narrower base of sources than we would like.

Several vegetables in one basket, charted by four manufacturers with a wide band and an instruction to use your own judgement.

Fresh

The quick answer

180°C (356°F) for 10–20 min

What is in the mix and how large it is cut. The manual publishes a ten-minute spread for 200-600g and tells the reader to set the time to their own taste, which is honest about how little a generic vegetable row can promise.

Assuming: 400g in total, about 25mm at the thickest point, From the fridge
In: Basket air fryer
Loaded: Single layer, pieces not touching
Preheat: Not needed
Result: Crisp outside, moist inside

Moderate confidenceWell supported, but from a narrower base of sources than we would like.

Preparation

Cut to a roughly even size and tossed in a little oil.

How to load the basket

Single layer, pieces not touching. The reference condition. Air reaches every surface, and times are the shortest the food will achieve.

How to tell it is done

A knife goes in with no resistance at the thickest piece
The cut faces have browned rather than merely softened

In a different appliance

Basket air fryer: 180°C for 8–23 min
What is in the mix, how large it is cut and how much of it there is. The published spread runs from eight minutes to twenty-three for 200g to a kilogram, and the manual explicitly tells the reader to set the time to their own taste.
Basket air fryer: 200°C for 16–20 min
Quantity within the published 300-700g band, and what is in the mix.

Where these figures came from — fresh

Moderate confidenceWell supported, but from a narrower base of sources than we would like.

Applies to: Specific to this model
Why this rating: A published row with a min-max quantity band, from the manufacturer that originated this product category, for a plain single-basket machine. The manual states in the same section that preheating is not necessary, which is why these records are not preheated.
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.
A generic mixed-vegetable row. Dense roots and soft courgette do not finish together, and the manual does not pretend otherwise — it gives a range and tells the reader to judge it.

Sources (1)

Philips Essential Airfryer HD9252/91 4.1L — User Manual (PDF)
Versuni Netherlands B.V. (Philips Domestic Appliances) — Manufacturer manual (United Kingdom)
Relied on for: The temperature, time and quantity for mixed vegetable pieces.
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 284/9317.

Leftover (reheating)

Before anything else

From national food-safety authorities, not from us. These take precedence over any cooking time below.

Requirement — Food safety (microbiological)

Cool cooked food and get it into the fridge within one to two hours, keep the fridge between 0 and 5°C, and eat leftovers within 48 hours.

How to tell, without a thermometer

There is no sensory test for this rule, and that is the point: food held too long at the wrong temperature does not necessarily look, smell or taste different

If it has not got there: Throw it away. This is the one rule in this catalogue where the remedy is not 'cook it longer', because cooking does not reverse it.

Important: Cooked rice is the sharpest case: Bacillus cereus toxins form at room temperature and survive reheating. Rice left out for more than an hour goes in the bin.

Requirement — Food safety (microbiological)

Reheat leftovers until steaming hot all the way through, and only reheat them once.

Target: 70°C in the thickest part, or an equivalent from the table below.

How to tell, without a thermometer

Steam rising from the centre, not just the edges
The middle is hot to the touch, tested after removing it from the appliance

If it has not got there: Keep going, and break dense food up or spread it out so the heat can reach the middle. If it will not heat through evenly, a microwave to get the centre hot followed by the air fryer to crisp the surface is a better tool for the job than the air fryer alone.

Important: Cooked rice and pasta left at room temperature can develop Bacillus cereus toxins that reheating does not destroy. If cooked rice has been out of the fridge for more than an hour, discard it rather than reheating it.

Published combinations delivering equivalent lethality. AirfryerHQ does not calculate values between these — only the pairs the authority published are shown.
Temperature	Held for	Measured at
70°C	2 min	the centre of the food
75°C	30 sec	the centre of the food

The quick answer

180°C (356°F) for 4–7 min

What is in the mix. Roasted roots reheat well; anything that was soft to begin with will be softer.

Assuming: 400g in total, From the fridge
In: Basket air fryer
Loaded: Single layer, pieces not touching
Preheat: Not needed
Result: Heated through

PreliminaryA starting point rather than a settled answer. Treat the numbers as a first attempt and check the food itself.

Preparation

Spread out in one layer so the moisture that comes out can leave. Nothing added.

How to load the basket

Single layer, pieces not touching. The reference condition. Air reaches every surface, and times are the shortest the food will achieve.

How to tell it is done

The edges have caught and dried again
Steaming hot right through the middle, not just at the edges

Change the result

Each of these moves the outcome in a known direction, and most cost you something. The trade is stated so you can decide whether you want it.

To know whether this is the right appliance: This works for roasted roots and squash and does not work for courgette, mushrooms, tomatoes or peppers, which were already at their limit the first time. There are deliberately no reheat records in this catalogue for those.
To be sure it is safe rather than just warm: Go by the food and not the clock. It has to be steaming hot the whole way through, and the middle of a dense portion lags a long way behind its surface in an air fryer.

Where these figures came from — leftover (reheating)

PreliminaryA starting point rather than a settled answer. Treat the numbers as a first attempt and check the food itself.

Applies to: Specific to this type of appliance
Why this rating: Top of the published band, because leftover roast vegetables are wet and need the water driven off before they will improve. The time is AirfryerHQ's estimate.
Last reviewed: 2026-08-13

What this does not cover

THE TIME ON THIS RECORD IS NOT SOURCED. Five manufacturers publish a reheating temperature and not one names a food, a quantity or a time for a named dish. The temperature sits inside their band; the time is AirfryerHQ's estimate and has not been measured.
Reheating is governed by the food-safety rule above rather than by this figure. Steaming hot throughout is the requirement; the time is a guide to getting there.

Sources (4)

Tefal Easy Fry Max EY245B40 5L Air Fryer — Instruction Manual (PDF)
Groupe SEB (Tefal) — Manufacturer manual (United Kingdom)
Relied on for: That this manufacturer's published reheating instruction is 160°C for up to ten minutes, with no food named.
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 328/8568.
Tower T17023 2.2 Litre Air Fryer — Safety and Instruction Manual (PDF)
RKW Ltd (Tower Housewares) — Manufacturer manual (United Kingdom)
Relied on for: That this manufacturer publishes 150°C for up to ten minutes for reheating.
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 745/2194.
Cookworks 5L Digital Air Fryer KDF-596D — Care & Instruction Manual (PDF)
Argos Limited (Cookworks) — Manufacturer manual (United Kingdom)
Relied on for: That this manufacturer publishes 180°C for up to ten minutes for reheating.
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 148/6623.
AirfryerHQ Sprint 5 analysis of published guidance across twenty-one manuals
AirfryerHQ — Calculated or inferred by AirfryerHQ (United Kingdom)
Relied on for: The reading that six published reheating positions across five manufacturers span 150-180°C, that three cap the time at ten minutes, and that none names a food — so the time on this record is AirfryerHQ's estimate.
AirfryerHQ's interpretation of what it says
Citation checked — the document exists and is described correctly

Chilled

No time or temperature for this, and not by accident

Mixed vegetables is sold and cooked chilled, so the question is a real one. AirfryerHQ holds no published figure for it: not one of the manufacturer manuals read for this catalogue gives a chart row for this food in this state.

We are not going to produce one by adjusting the fresh figure above. A time arrived at that way would appear on this page looking exactly like a time somebody measured, and you would have no way to tell the difference.

What we do hold for mixed vegetables: fresh, leftover (reheating). Those are a different question, not a starting point for this one.

From frozen

No time or temperature for this, and not by accident

Mixed vegetables is sold and cooked from frozen, so the question is a real one. AirfryerHQ holds no published figure for it: not one of the manufacturer manuals read for this catalogue gives a chart row for this food in this state.

Same reason as above: a figure adjusted from one we do hold would be indistinguishable from one somebody measured.

What still governs, figure or no figure

Requirement — Food safety (microbiological)

Food cooked from frozen must reach the same core temperature as the same food cooked fresh — the frozen centre is the last thing to get there.

Target: 70°C in the thickest part.

How to tell, without a thermometer

No ice or cold spot at the centre when the thickest piece is cut open
Steaming hot throughout, tested in the middle rather than the edge

If it has not got there: Reduce the temperature by 10–20°C and give it longer. A lower set point lets the centre catch up before the surface passes the point of no return, and it is the single most useful adjustment for cooking from frozen.

Important: If the packaging says the product must be thawed before cooking, follow it. That instruction exists because the manufacturer has tested cooking it from frozen and it did not reach temperature reliably.

What we do hold for mixed vegetables: fresh, leftover (reheating). Those are a different question, not a starting point for this one.

What usually goes wrong

Some of it burnt and some of it raw, because dense roots and soft vegetables were cut the same size and put in together. Cutting the slow things smaller than the fast ones fixes it; adjusting the time does not.

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.

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 mixed vegetables behaves this way

A mixed load is a scheduling problem rather than a cooking one. The individual vegetables behave exactly as their own records describe — a carrot is dense and slow, a courgette collapses, a pepper blisters — and putting them in together means the fastest is finished before the slowest has started to soften. The published answer to that is a wide range and a note to check, which is what a manufacturer says when the honest answer is that it depends on what you put in. The practical version is to cut the dense things smaller than the soft ones, which converts a scheduling problem back into a single cooking time.

Where to go from here

The pages that answer the questions this one tends to raise.

Using a thermometer, and where to put itThe times above are for a piece that is not the one you are holding. This measures yours — and it is the single change that fixes most dry mixed vegetables.
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.
Cooking from frozenUsually cooler and longer than the same food fresh, and never worked out from the fresh figure.
Reheating leftoversA different question governed by a different rule — steaming hot throughout, and only once.
Why published timings differIf another chart says something else, this is usually why — and which one to believe.

Easily confused with

Carrot batons — A different cooking problem with a different answer.
Pepper chunks — A different cooking problem with a different answer.
Courgette sticks — A different cooking problem with a different answer.