Cleaning an oven after rats have infested a kitchen area involves sanitising, disinfecting and deodorising it. This not only gets rid of germs associated with rats and their droppings, but it gets rid of the smell of urine -- the primary odour left behind after rat infestation. Removing the odours helps make the oven functional again, whether you're cleaning a rented unit after an untidy tenant or after the successful efforts of an exterminator.
Add 118mls. of white vinegar and 28.4gr. of bleach to a 591ml. plastic spray bottle. The bleach and vinegar not only kill germs, but neutralise odours in the oven instead of covering them up like deodorising products.
Add around 414mls. of water to the bottle and secure the lid on it. Shake it vigorously for a minute to disperse the vinegar and bleach throughout the water. Put on your gloves to protect your hands. Fill the other 591ml. bottle with water only.
Open the oven and remove the grates. Set the grates aside and soak them in a tub of the same type of solution before scrubbing them. Let them soak while you scrub the oven.
Spray the inside of the oven liberally with the spray mixture. Make sure to get the back and side walls of the oven, as well as the bottom of it. Let the mixture sit in the oven for 10 minutes. Use this time to scrub the oven grates.
Scrub the inside of the oven with a wet clean rag. Scrub firmly in circular motions to remove any stuck on gunk or residue.
Spray the water-only bottle inside of the oven, over all of the areas you sprayed with the bleach and vinegar solution. This acts as a rinse during the cleaning process.
Use another clean, wet rag to scrub the inside of the stove again. Repeat this step with another rag and then leave the stove open to dry for 3 to 5 hours. Replace the grates after they have been scrubbed and dried.