Microwave/Convention and how they work

Microwave/Convention and how they work

1. How a microwave oven works

   • Magnetron that's in the microwave produced microwaves
     • The microwaves travel through a travel guide where it goes to a stirrer
       • Stirrer scatters the waves
         • waves bounce on wall to wall until they hit the food
           • water molecules which are contained in most food have a positive charge and negative charge at the other end
             • water molecules act like magnets
               • magnetic field pulls molecules back on way then the other way
                 • back and forth motion by molecules occurs almost 2 and a half a billion times a second
                   • rapid vibration causes friction which produces heat

2. how a convection oven works

   • Convection oven tips
     • a oven that has a additonal fan that is once turned on when disperse heat evenly
       • creates one flow of hot air through the cavity of your oven
         • cook food 25 degrees lower than you normaly would than a conventional oven
           • cook food 255 faster than you normally wood in a conventional oven
             • place it on any rack in the oven because thee is no hot spots or cold spots
               • use pan that is more shallow or low sided
                 • use bake wear that is light and bright
   • heating elements on top and bottom of the oven chamber
     • heat gradually radiates out of this elements to transfer heat to the food
       • third heating element in the back
         • third element has a fan that sucks all the air from the chamber back through the element to the oven
           • food is done 25% faster than a conventional oven when using a convection oven
             • food cooks more evenly
               • the air moving around removes the hot and cool spots