Fats and grease congeal and harden in cold water which can then be flushed through the system. Don't use hot water when grinding because it can dissolve fats and grease, which may then accumulate in the drainline. Almost all biodegradable food waste can be fed into disposals. However, do not throw down the disposal clam or oyster shells, corn husks or other material with a high fiber content. Under no circumstances should you put glass, plastic or metal non-food materials through a disposal.
Maintenance is easy.
Grinding small bones and egg shells actually helps clean the disposal by scraping away stubborn deposits or citric acid and pulp. Grinding a little ice is another way to clean out deposits and get rid of odors. Click here to receive up to four Free estimates from prescreened and insured contractors. Easily Become a Master Gardener with Pre-Designed Gardens. FREE Issue of The Family Handyman Magazine.