How should I handle food that sticks in stainless steel pans or woks after cooking in sunflower oil? [duplicate]

To prevent sticking, your pan surface should be around 150 to 160°C. The farther away you move from that (higher or lower temperature), the more likely that your food will stick. So the temperature is very important, but without knowing how you are cooking, I can't tell you if you need more or less heat.

If you have a layer of food which sticks, but hasn't burned, scratch it with a spatula and stir or turn. If it is burned, remove from the heat, scoop the food above the burned layer, and, if not yet ready, continue cooking in another pan. Be careful, because if you include flakes of burned food, your whole meal will taste burned.

The best way to stop food from sticking to non-Tefloned pans is to season the pans properly. Iron and steel pans have a porous surface and so are prone to stick, not to mention rust.

Seasoning the pan initially involves applying a thin layer of oil with a kitchen cloth and heating the pan gently. This allows the pan to absorb a little of the oil, which forms a protective, non-stick layer on the pan surface.

To keep the pan's non-stick coating, you should avoid washing it in soapy water. Instead, rinse the pan well in hot water and use a brush to remove food particles, dry it, then apply another layer of oil to the pan. Eventually you will build up a good layer of oil that will make the pan very non-stick.

As far as cleaning, I have found that a Sodium Percarbonate-based cleaner (Oxyclean, for instance) works quite well for getting heavy soils off of glass and stainless steel (don't use it on Aluminum, as it will cause pitting). Fill the pan with hot water, then pour some oxyclean powder into the pan, and let it sit overnight. Any remaining soils can be removed with the scotchbrite green scrubby pads and elbow grease.

Again, only use this stuff on non-reactive surfaces, such as glass and stainless steel. Aluminum will degrade quickly, and the scrubby pads will remove non-stick surfaces.