What the handle indicator is actually telling you
The Prestige Thermo Smart Heat Indicator Non-Stick Saucepan & Frying Pan Set has a heat indicator built into the handle of each pan. It changes from black to green when the interior of the pan is hot enough and ready to cook. That is the whole claim, and it is a useful one: it gives you a visible cue instead of guessing from a shimmer or a water droplet.
The indicator is a readiness signal, not a thermometer. It does not display a number, and the supplied information does not describe different colours for different temperatures. Treat green as your cue to start cooking, not as a guarantee that every spot in the pan is at the same heat.
The set behind the signal
- Thermo Smart Heat Indicator: Non-Stick Saucepan & Frying Pan Set - 5 Pieces: 5 pieces: 16cm, 18cm and 20cm saucepans with glass lids, plus 20cm and 24cm frying pans. Every pan in the set carries the same handle indicator, so the cue works across saucepans and frying pans alike.

Thermo Smart Heat Indicator: Non-Stick Saucepan & Frying Pan Set - 5 Pieces - Thermo Smart Heat Indicator: Non-Stick Saucepan & Frying Pan Set - 5 Pieces: Diamond-infused non-stick coating, PFOA free. The coating is the reason the pan needs little or no oil, which changes how you should read the heat signal.
- Thermo Smart Heat Indicator: Non-Stick Saucepan & Frying Pan Set - 5 Pieces: Suitable for all hobs including induction, gas and electric. The indicator is relevant whichever hob you use, but heating speed still varies by hob type.
Three indicator myths worth retiring
- Myth: green means the pan is at a precise cooking temperature.: The supplied description only says the indicator turns green when the pan is hot enough and ready to cook. No temperature is given, so do not treat it as a set-point you can dial in.
- Myth: you must wait for green before adding oil.: The indicator tells you when the pan interior is ready to cook. The supplied information does not specify an oil timing, so follow your recipe and normal non-stick practice rather than inventing a rule.
- Myth: the handle stays cool because the indicator is working.: These are two separate features. The heat-resistant handles are described as staying cool to the touch for a comfortable grip, and the indicator is a separate colour-change cue in the handle.
How to use the cue without over-reading it
Preheat on your normal setting and watch the handle. When it turns green, the pan is ready. Because the non-stick is diamond-infused and designed for little or no oil, you do not need a pool of oil to judge heat; the indicator does that job for you.
One practical caveat: the indicator reflects the pan interior being hot enough, not the evenness of that heat across the base. Give the pan a moment after green before adding food, especially on a high-output ring, and keep to moderate heat for non-stick cooking.
The set is oven safe up to 180°C / Gas mark 4 and dishwasher safe. The indicator is a hob-side cue; the supplied information does not describe how it behaves in the oven, so use it for hob cooking and rely on your oven setting once the pan goes in.
Where the indicator fits in daily care
- Thermo Smart Heat Indicator: Non-Stick Saucepan & Frying Pan Set - 5 Pieces: Oven and dishwasher safe up to 180°C / Gas mark 4. You can start on the hob and finish in the oven, but the indicator's role ends at the hob.
- Thermo Smart Heat Indicator: Non-Stick Saucepan & Frying Pan Set - 5 Pieces: Clean-up is described as effortless, with no need to scrub or soak. Less scrubbing helps protect the non-stick and keeps the handle assembly free of harsh treatment.
- Thermo Smart Heat Indicator: Non-Stick Saucepan & Frying Pan Set - 5 Pieces: Covered by a 5 year guarantee. The guarantee is a quality signal, but it is not a licence to abuse the coating or the handle.
The honest limits of the evidence
The supplied information does not state an exact temperature at which the indicator changes colour, nor whether it reacts differently on induction versus gas. It also does not give a recommended preheat time. Those are gaps in the description, not proof that the feature is vague in person.
What you can rely on is the stated behaviour: black to green when the pan is hot enough to cook. Use that as your cue, pair it with the stay-cool handle and the induction-ready base, and skip the myths that turn a simple readiness signal into a precision instrument.


