These are the guidelines published by Gastrolux

Thoroughly wash your Gastrolux cookware product with hot water and washing-up liquid, then rinse and dry well.

Heat up the pan and lightly coat its interior with a small amount of cooking oil.

Always heat up the pan before adding the food you are going to cook.

Gastrolux handles tolerate temperatures up to 240º C (NB Remember that the removable handles are not oven proof and so must be removed).

For cleaning a Gastrolux pan, use warm water and washing-up liquid.

Burnt on oils or fats reduce the non stick effect and should be removed immediately

Remember that:

Gastrolux clear lids allow you to view your food as it is cooking. They have a steam release knob - just turn the knob when necessary. Steaming is a very healthy way of cooking food - it preserves vitamins and reduces energy consumption, too.