What does your oven look like? Want her to be perfect? Then I recommend thoroughly cleaning the oven at least once every three to six months or more often if necessary. Since burnt dirt can be persistent, many commercial cleaning products contain fairly powerful chemicals. These include ethylene glycol, ethers, methylene chloride, alkali (sodium and potassium hydroxide), petroleum distillates, and pine oil. But do not try to apply oven cleaner on kitchen countertops
