|MadSci Network: Chemistry|
Hi Jeff. Your question is a really involved one. Cooking is the process of heating a collection of food items together to make something different. Food items (spices, vegetables, meats, etc) are complicated systems, so when you combine several, you're talking a really complicated system. In general, cooking is necessary to kill the germs. The refrigerator helps by keeping the temperature low, where the rate of bacteria/germ reproduction is lower than at room temperature. What also comes out of cooking is chemical reactions. Imagine bread. You add yeast to the flour water mixture and generate CO2 and trace alcohol. Imagine herbs. As you heat them in a sauce, you extract out various chemical species. If you are looking for an example of any scientific behavior, you can usually find it in cooking. PLease feel free to contact me if you have any further questions, need clarification, or just want to communicate on this question. email: firstname.lastname@example.org Best Regards, Mike
Try the links in the MadSci Library for more information on Chemistry.