Dishwashing: Most T-fal non-stick cookware can be cleaned in a dishwasher, but be advised that hard enamel, brushed aluminum and stainless steel EXTERIOR finishes may discolor and become dull due to the abrasive nature of dishwasher detergents. These effects are not covered under the warranty.
Tefal/T-fal non-stick coating is a technical coating made from a polymer name polytetrafluoroethylene (PTFE). It is PTFE which gives the cookware the non-stick properties. Public health authorities in Europe and in the USA (ANSES, EFSA, FDA) demonstrated that PTFE is an inert substance which does not chemically react with food, water or domestic cleaning products. It is totally harmless in case of ingestion. These Public health authorities confirmed the harmlessness of PTFE non-stick coatings in cookware. In fact, PTFE is so safe that it is frequently used in the medical profession to coat pacemakers and the tiny tubes made to replace arteries. It is also used for surgical procedures for the benefit of patients with severe kidney disease, and some joint prostheses are also partly coated with PTFE.
• Use plastic or wood utensils, with some ranges, you can use certain metal utensils with the exception of knives and whisks (Refer to the recommendations for use indicated on the packaging or in the instructions included with the product). • Avoid cutting directly in the pans. • Do not gouge the non-stick surface. Slight surface marks or abrasions are normal and will not affect the cookwares performance. • After cooking, do not let pans boil dry and do not leave empty pans on a heated burner. • Always select the proper electric burner size or adjust the gas burner so the flame only touches the bottom of the pan and does not climb up the sides. • Never leave pans unattended while cooking. • Let pans cool before cleaning. • Wash the frying pan in hot water and washing-up liquid to remove any dust. Dry it and rub a little cooking oil into the non-stick coating before using for the first time. Remove any excess oil. • Wash and dry your kitchenware after each use.
• The pan has been used on too high a heat or the wrong source of heat for the pan which has resulted in the pan base becoming warped and distorted. • Also never put cold water into a hot pan or plunge hot cookware in cold water. Sudden changes of temperature may cause the metal to warp, resulting in an uneven base.
Tefal/T-fal, as part of its commitment to Quality, has included “Health and Environment” Eco information on its non-stick Tefal/T-fal products. This commitment guarantees the absence of PFOA, lead and cadmium in Tefal/T-fal coatings and the guarantees that our non-stick products are harmless for the environment and the consumer. This Eco information is based on the regular analysis conducted by independent laboratories in many countries (INERIS in France, ASAHI GLASS FLUOROPOLYMERS in UK, FABES Labs in Germany, MB Labs in Canada, SGS in China). This commitment can be found on the website of the Tefal/T-fal brand, as well as the packaging of cookware with non-stick Tefal/T-fal coating.
Non-stick cookware: Non-stick utensils are specially designed so that food does not stick. However, the pan or pot has to be properly maintained. For that purpose, please observe the following tips: slightly oil the pan before first use and then wash and dry it, repeat the process from time to time if you wash the pan regularly in the dishwasher. It is also necessary to avoid overheating and scratches, in particular due to use of metal accessories (spatulas, ladles) and/or due to cleaning with a scouring sponge.Ceramic cookware: The non-stick properties of the ceramic coating are a lot more limited, both in terms of performance and duration, than those of the classic (PTFE) coating. We recommend cooking with more fat as well as washing more vigorously with slightly more washing-up liquid. For baked-on food, we recommend leaving your kitchenware to soak in soapy water, possibly with a little white vinegar. Over time, the ceramic base will become stained without it being possible to remove the marks. This will not impair the performance of the kitchenware in any way and does not present any danger for health.Stainless steel cookware: A preheated pan and lower flames are the keys to stick-free stainless steel cooking. Preheat your pan on low or medium heat for one to two minutes. You can test to see if your pan is ready by dropping a few drops of water on the pan and seeing if the water bounces around. After properly preheated, pour in 2-3 teaspoons of oil or enough to cover the bottom of the cooking surface. Before adding food, its best to pat it dry of any moisture and allow it to reach room temperature. When adding food, make sure that there is an even sizzling sound when your food touches the pan. This indicates that your food is cooking on contact and creating a natural barrier to prevent sticking. Allow food to cook without disturbing it until the correct doneness is achieved. The natural sugars in your food caramelize on the cooked surface, developing great flavors and lifting your food off of the cooking surface naturally. If the sound that food makes on initial contact with the pan is more of a crackle than a sizzle, your heat is too high, and sticking may occur. NEVER USE non-stick cooking sprays.
I don’t know the T-fal Armaral line but this might help: T-fal USE & CARE INSTRUCTIONS On a very general note, I think any DW will ultimately harm about any kind of cookware in due time. The real question is: how long will it take? 
The DW is a harsh environment, and as others have said, it will lead to faster wear and tear on many things. One way to mitigate is to use less than the mfg’s recommended amount of dishwasher detergent – it’s quite caustic, and is probably the biggest culprit, now that most newer dishwashers don’t have heating elements. The heated elements were often responsible for loss of color, or melting off metal rims on china and glassware. Hence the advent of the china and crystal cycles that debuted about 30+ years ago. Do I put everything in the DW? – pretty much, except for good knives, some glassware or antique pieces. I use the china infrequently, so it goes in too – so far it’s fared very well. Oh, and to answer the question, the T-fal goes in too, unless there’s other hand washing to do.
Is it bad to put pots and pans in the dishwasher?
FAQ
Is Tefal pans dishwasher safe?
Is it OK to put non-stick pans in the dishwasher?
How do you clean a Tefal pan?
Can you put a Tefal wok in the dishwasher?
Can you put a Tefal Pan in the oven?
To avoid spillage, do not fill the pans more than two-thirds full. Avoid using your pans to store acidic, salty or fatty foods before or after cooking. Unless otherwise stated only use your Tefal pans on a hob and not in an oven – refer also to sections regarding handles, knobs and lids.
Can you put T-Fal cookware in a dishwasher?
Dishwashing: Most T-fal non-stick cookware can be cleaned in a dishwasher, but be advised that hard enamel, brushed aluminum and stainless steel EXTERIOR finishes may discolor and become dull due to the abrasive nature of dishwasher detergents. These effects are not covered under the warranty.
How do I care for Tefal/T-Fal* cookware?
Tefal/T-Fal* cookware is designed to provide many years of cooking enjoyment and superior performance provided that our use and care advice is followed : Remove all packaging materials, labels, stickers and tags. Note: Some cookware is shipped with a protective plastic piece, in particular those located at the base of the handle.
How do I know if my Tefal Pan is hot?
If you have any concerns, please contact the Consumer Helpline. Tefal cookware comes both with and without Thermo-Spot technology. Should your pan have a heat indicator like the ones shown, this will tell you when the pan has reached the optimum cooking temperature (red spot approx 180°C, green spot 140°C).