Do you think your waste vegetable oil is compostable? Waste cooking oil is not decomposable; and should not be added to the compost in your surroundings. You can dispose of cooking oil in various ways in order to maintain the eco-friendly nature of the environment. You should not dump waste cooking in the refuse bin or pour down the drain. Let us look at some of the eco-friendly-ways you can recycle and reuse waste cooking oil. It could be recycled into biodiesel and fuel, you can also take them to a recycling center, and it could be useful in cosmetics industries. You can also mixed it with some grains and nuts and used to feed the birds, waste cooking oil could be added to dogs’ food, and you can also freeze used vegetable oil and used to make ornaments.