Aim for a golden yellow colour or lighter on starchy foods such as chips and roast potatoes, rather than a darker brown.
Precaution — Chemical safety
Aim for a golden yellow colour or lighter on starchy foods such as chips and roast potatoes, rather than a darker brown.
How to tell, without a thermometer
- Golden yellow or lighter, rather than deep brown
- No blackened tips or edges on chips and wedges
If it has not got there: Cut the temperature by 10°C and extend the time. Darker colour in an air fryer is usually a symptom of running hotter than the food needs rather than of cooking it for longer. Note that this specific adjustment is AirfryerHQ's inference from the mechanism and not FSA advice — the authority works in terms of colour and gives no temperature guidance to home cooks.
Why this is the rule
Acrylamide forms in starchy foods as they brown at high temperature, and the amount rises steeply with colour. This matters more in an air fryer than it looks, because the appliance browns fast and small quantities can go from golden to dark in the two minutes between checks. It is a cumulative-exposure question rather than an acute one — nobody is harmed by one dark chip — but the practical advice is easy to follow and costs nothing. One piece of advice that used to travel with this one has been withdrawn: the FSA's current position, on newer research, is that storing potatoes in the fridge does not materially increase acrylamide-forming potential compared with a cool dark place, so either is fine.
This outranks any cooking time on this site. Where a cooking recommendation cannot be reconciled with a rule like this one, AirfryerHQ does not publish the recommendation — not with a warning attached, not greyed out, not at all.
Evidence and confidence
- Applies to
- Applies generally
- Why this rating
- Passage-verified from the FSA's own consumer advice. The reading corrected two things Sprint 1 had slightly wrong: the target is 'or lighter', and the potato storage advice has changed.
- Last reviewed
- 2026-08-13
What this does not cover
- AirfryerHQ has not established whether air frying produces more or less acrylamide than oven roasting at equivalent colour. Sources differ and the question is not settled here.
- The suggestion to drop the set point by 10°C is AirfryerHQ's, not the FSA's, and is labelled as such wherever it appears.
Sources (1)
Food Standards Agency — UK food-safety authority (United Kingdom)
Relied on for: The 'golden yellow or lighter' colour target, the foods it applies to, the statement that acrylamide forms above 120°C, and the current position on refrigerating potatoes.
States this directly
Passage read and verified
Retrieved 2026-08-13 from gov.uk