KitchenAid is a brand of home appliances owned and operated by the Whirlpool corporation. Among the products released under the KitchenAid banner are pots and pans, mixers and other types of cookware, as well as large appliances such as washers and dryers. If you're trying to tell the age of a KitchenAid product in your home, you can do so using its serial number.
Find the serial number of your KitchenAid appliance. This number is on the appliance itself, no matter if it's a refrigerator or a toaster. The number also is in the manual that came with the product (if you still have it). Write this number down so you don't have to keep referring to the label on the appliance.
Look at the second letter in your serial number. It represents the year your KitchenAid appliance was produced. For example, "J" indicates an appliance made in 1999. The years go up as the letters do, so "K" would equal the year 2000, "L" would equal the year 2001, and so on. The year 2011 would be signified by a "V."
Examine your serial number for the first two numbers after the "Year" letter. This tells the exact week of the year that your KitchenAid appliance was manufactured. For example, if your serial number has "52" in this position, it would indicate that the product was manufactured in the last week of the year. Refer to a calendar for that year (such as the calendar on your computer) to narrow down the age of your KitchenAid product to a period of seven days.