Non-stick frying pans are one of the most common kitchen utensils today. The frying pan is mainly used for cooking. Non-stick frying pans are made of two components, the metal body and the non-stick layer. This is because the surface of the non-stick pan is covered with a layer of oil or fat when the pan is in use. The oil layer has four functions: it lubricates the surface; increases contact between food and pan; acts as a thermal mass to reduce cooking time; and can increase flavor and color. The frying pans were made of cast iron. Cast iron is mainly used for outdoor cooking. Now, frying pans are made from metals such as aluminum and stainless steel. Frying pans can also be made of copper.HistoryThe first frying pan was made of cooper. And its first use in Mesopotamia and Greece. In Greece they were called “Teganon” and in Rome they were called patella. The first non-stick frying pan was introduced by DuPont in 1956. The product still has some limitations as the coating is poor, making it the standard for cookware. RadioactivityRadioactivity is a particle released from nuclei as a result of an unstable nucleus. Because the core is an intense conflict between the two most powerful forces in nature, there are many nuclear isotopes that are unstable and emit radiation. Using a Frying Pan A non-stick frying pan can be used for many fried foods. The function is when we cook foods that are a little moist; food parts do not stick to the pan. The non-stick frying pan is different from a regular frying pan. The non-stick frying pan has two layers which are the metal body and the non-stick layer and the regular frying pan has one layer which is the...... middle of paper ......icides/teflon.decomposition. prod.htm (May 17, 2010) - Neal Litherland (2010). How are non-stick frying pans made around the world? Available: http://www.ehow.com/how-does_5653323_world-non_stick-frying-pans-made_.html (May 10, 2010) - Paul Kendall (2001). The deadly toxins of non-stick frying pans. Available: http://www.dailymail.co.uk/health/article-61407/The-deadly-toxins-non-stick-frying-pans.html (May 6, 2010) - R. Nave (2005). Radioactivity. Available: http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear/radact.html (May 30, 2010) Works Cited http://www.fluoridealert.org/pesticides/teflon.decomposition.prod.htm http : //www.ehow.com/how-does_5653323_world-non_stick-frying-pans-made_.html http://www.dailymail.co.uk/health/article-61407/The-deadly-toxins-non-stick- frying -pans.html http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear/radact.html