Brussels sprouts, halved in an air fryer
Fresh — the short answer
180°C (356°F) for 20–24 min
- For
- 310–500g in total
- In
- Combination microwave with air fry, single layer, pieces not touching
- Published for
- Panasonic Air Fry Combination Microwave Oven NN-CD88QS
- Preheat
- Not needed
- Part way
- shake the food at about 13 min
- Check
- Cut faces deeply browned
Fresh sprouts get twenty to twenty-four minutes at 180°C in one manufacturer's table; two others print eight to fifteen minutes at 200°C for halved ones without naming a state.
Manufacturer figures with no state given — 2 from named machines, listed further down this page.
Questions people ask about brussels sprouts, halved — 2 answered further down this page.
Fresh
The quick answer
180°C (356°F) for 20–24 min
Published range for 310–500g on Air Fry 1.
- Assuming
- 310–500g in total
- In
- Combination microwave with air fry
- Published for
- Panasonic Air Fry Combination Microwave Oven NN-CD88QS
- Loaded
- Single layer, pieces not touching
- Preheat
- Not needed
- Result
- Crisp outside, moist inside
Preparation
Season with oil, salt and black pepper, as the chart prints. It gives no amount of oil.
How to load it
Single layer, pieces not touching. The reference condition. Air reaches every surface, and times are the shortest the food will achieve.
While it cooks
At about 13–16 minutes: Shake the food
The chart specifies stirring at two thirds.
How to tell it is done
- Cut faces deeply browned
- The core gives easily under a fork
Where these figures came from — fresh
- Applies to
- Specific to this model
- Why this rating
- A second published figure for sprouts, against the drawer machine's 15 minutes at 200°C. Cooler and longer, in the larger cavity, as the pattern predicts.
- 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.
Sources (1)
Panasonic Air Fry Combination Microwave Oven NN-CD88QS — Operating Instructions (PDF)
Panasonic Marketing Europe GmbH — Manufacturer manual (United Kingdom and European Union)
Relied on for: Brussels sprouts 310–500g, 20–24 minutes at 180°C on Air Fry 1, seasoned, stir at two thirds.
States this directly
Passage read and verified
Retrieved 2026-08-13 from tda.panasonic-europe-service.com
From frozen
No time or temperature for this, and not by accident
From frozen and leftover (reheating) are each a real question for brussels sprouts, halved. AirfryerHQ holds no published figure for any of them: not one of the manufacturer manuals read for this catalogue gives a chart row for this food in those states.
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 still governs, figure or no figure
These rules come from national food-safety authorities and apply whether or not anybody has published a cooking time. They are the part of this question we can answer.
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 brussels sprouts, halved: fresh. That is a different question, not a starting point for these.
Leftover (reheating)
No time or temperature for this
No published figure is held for this state either. The reason is given once, under from frozen.
What still governs, figure or no figure
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.
| Temperature | Held for | Measured at |
|---|---|---|
| 70°C | 2 min | the centre of the food |
| 75°C | 30 sec | the centre of the food |
Manufacturer figures with no state given
Each of these is a published figure for one named machine. The manufacturer does not say whether this is fresh or frozen. So they are kept apart from the figures above, and not used as the answer for any of them.
Cookworks 9L Dual Air Fryer: 200°C for 15 min
A single published figure, and the chart specifies HALVED. That specification is the instruction, not a detail.
Ninja Foodi MAX Health Grill & Air Fryer AG551UK: 200°C for 8–10 min
Published range for 700g, cut in half.
Questions people ask about brussels sprouts, halved
- Why do the outer leaves burn before the sprout is done?
- The loose outer leaves are thin and dry, and they scorch at the heat the dense core needs. Pull the loosest ones off before cooking, or leave them on and treat them as crisps: both are honest answers. Turning the heat down to save them leaves the middle hard.A general cooking principle, not a measurement.
- Should sprouts be halved, or cooked whole?
- Every row on this page is for halved sprouts, and one adds that the stems are taken off. Halving puts a flat cut face into the moving air, which browns, and lets the heat reach the middle sooner. Whole sprouts are a different cook with their own published figure.From the figures on this page. Whole Brussels sprouts
What usually goes wrong
Bitter black outer leaves around a good sprout. The loose leaves are thin and dry and burn at the temperature the dense core needs. Pulling the loosest ones off before cooking, or accepting them as crisps, are the two honest options.
Running the appliance safely
The rules for the machine are the same whatever is in it: plug it straight into a wall socket, leave clear space round it, do not overfill it, do not leave it running unattended, and unplug it at black smoke or an electrical smell. They are set out once, each with its source and what to do if it has already happened, and not repeated on every food. Every rule for running an air fryer safely.
Brussels sprouts in fast-moving hot air
A sprout is layered leaves around a dense core, so heat has to travel through a thick, low-moisture structure. Halving exposes the core and gives a flat cut face that browns, and the browning is what converts the sulphurous compounds people dislike into something sweeter. The loose outer leaves are the risk: they are thin and dry and will char to bitterness at the temperature the core needs.
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. A probe measures yours, which is what the safety rule on this page asks for.
- 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
- Cauliflower florets — A different cooking problem with a different answer.