DIY Disposal Cleaner - ½ cup lemon juice & ½ cup baking soda Heat lemon juice in microwave for 30 seconds. Add baking soda slowly (it will bubble) and mix well. Turn on the disposal and pour down the. Household Cleaning Tips, Cleaning Recipes, Cleaning Hacks, Household Products, Household Cleaners, Car Cleaning, Cleaning Supplies, Cleaners Homemade, Diy Cleaners