Some granite steel cookware uses Teflon (PTFE) coating for its nonstick properties, yes, but not all granite steel cookware does. Some granite stone cookware does not have a Teflon covering. What is Granite stone made of? Granite is a fairly common, heavily used material.

Even though these are sold as non-stick, they do benefit from seasoning first before cooking with them. Wash and dry the pan by hand. Then coat the pan with a thin layer of oil and heat the pan up on a medium heat setting for a few minutes. Remove from heat and with a dry cloth or paper towel, wipe down.

A layer of burnt-on oil or food gets in between the PTFE coating and whatever food you're cooking, rendering that coating ineffective. While it's better to prevent burnt messes than it is to remove them, you can usually get rid of them with a bit of extra elbow grease.

Granitestone ceramic cookware doesn't need to be seasoned in most cases.

While most non stick pans last an average of two to three years, pans of a poorer quality may yield fewer uses before the non stick coating wears off. Alternately, higher quality pans may last longer than three years with the right care.

The pots and pans are well made and heavy duty. The granite stone non stick surface it thick and feels like metal utensils would not harm it. You can cook in these with or without oil and the food does not stick.

The term 'granite cookware' refers to any cookware with carbon steel, aluminium, or stainless steel cores finished with high-end and extremely durable non-stick coatings. The term can be applied to cookware in all shapes and forms, including pots, pans, grills and bakeware.

Cooking with the wrong kind of fat in your nonstick pan. Cooking spray causes a build-up of residue around the edge of nonstick cookware that simply doesn't burn off. As a result, the effort needed to scrub off the residue can damage the pan. Instead, opt for cooking fats like butter or olive oil to avoid this.

If your pot or pan shows signs of discoloration, chips, and/or scratches on the surface of the coating, then Rodgers says it's time to throw it out - especially if it's losing its non-stickiness.

If you notice the non stick coating peeling off of the pan, it's definitely time to start shopping for a new one - this is a sure sign that the non stick is no longer doing its job. There are a few causes of warping in non stick pans, but the main culprit is taking your pan from hot to cold too quickly.

Always use a small amount of oil or butter when cooking can make the nonstick coating last longer, especially if you're using cooking techniques like searing and stir-frying.

5 Signs You Should Replace Your Nonstick Pan

1. You bought it before 2015. In general, you want to replace nonstick pans after five years.
2. Scratched or chipped coating.
3. Rust.
4. Dark discoloration.
5. Food is sticking to it.