Can You Put Eggshells Down the Garbage Disposal?


Author: Mary Beth Benoit
Published: January 18, 2012
Updated: March 25, 2014
© <a href="http://www.sophisticatededge.com/can-you-put-eggshells-down-the-garbage-disposal.html"></a>

Summary: Putting eggshells down the garbage disposal may not hurt your unit, but it may clog your pipes and septic system.

Tags: Can you put eggshells down the garbage disposal, a better use for eggshells

 

According to Insinkerator, a manufacturer of garbage disposals, "Food waste disposers can handle virtually all types of food waste, up to and including small meat bones.  Meat itself, bones from poultry or fish, egg shells, fruit and most vegetables are all dealt with effortlessly." [Insinkerator]

The garbage disposal may be able to handle your eggshell waste, but your sewer lines may not fare as well.

But Eggshells Are Fragile. . .What's the Harm

It would seem that a fragile little eggshell would be easily pulverized by the mighty garbage disposal.  A closer look at the anatomy of an eggshell will highlight the issue.

The eggshell is comprised of several layers.  The outermost shell is made of calcium carbonate and is porous.  This is covered with a protective layer called the cuticle.  Directly beneath the hard outer shell, there are two strong protein membranes that protect the egg white from bacterial invasion.  These membranes contain keratin, the protein found in human hair.  They also have a sticky consistency, which is why they cause issues with garbage disposals.  The eggshells will stick and collect and can jam a garbage disposal as well as build up on pipes and cause clogs.

Sewer Clogs Could Be a Major Expense

When you process food in your garbage disposal, it exits your house via a pipe that is either attached to a private septic tank or to a municipal sewage system.  In the instance of eggshells, they can stick to your pipes, collect, and cause a clog, which can become exorbitantly costly.  If you are lucky enough just to clog your garbage disposer, the cost may only be a repairman.  If the clog occurs in the septic pipe somewhere between the home and the septic tank, you are likely to be facing a major expense. 

Some that utilize the public sewer lines believe that issues that occur in the pipes are not their problem.  Not so.  Most municipalities will maintain all sewer lines UP TO the property line.  Anything that occurs within the lines between your home and the edge of your property line is your responsibility.  If you clog it, you incur the expense of clearing it.

A Better Use of Eggshells

Rather than sending your eggshells through the garbage disposal and risk a clog, you are better off throwing them away.  Better yet, add them to the compost pile.  Eggshells can be easily composted and later used as a soil amendment in vegetable or flower gardens.

purplearrow

Works Cited

Garbage Disposal
"InSinkErator - Garbage Disposers, Garbage Disposals, Instant Hot Water Dispensers"
http://www.insinkerator.com/disposers/why.shtml

Welcome to the City of San Bruno, California
"Welcome to the City of San Bruno, California"
http://sanbruno.ca.gov/pw_sewageproblems.html

US Environmental Protection Agency
"Best Practices at EPA’s Regional Offices"
http://www.epa.gov/oaintrnt/waste/bps_offices.htm

purplearrowExpert Opinion

Quote: "Did you know that YOU, as a homeowner, have a responsibility with maintaining the sewer system?  Homeowners are required to maintain the lateral from their home, to the main sewer line, typically located in the street, or nearby easement. Maintaining the lateral includes keeping the lateral line flowing and free of debris such as roots, or grease."

SourceHomeowner Responsibilities     Dept. of Public Works, County of Los Angeles.

 

 

Quote: ""A common misconception that we hear is that putting egg shells in your drain will serve to sharpen disposal blades.  Not only is this not true, egg shells are actually key culprits of clogged drainage lines.""

SourceWhat Can and Cannot Go Down My Garbage Disposal?  NowThen Plumbing Inc.. 

purple arrowCite this Article

"Can You Put Eggshells Down the Garbage Disposal?." Sophisticated Edge. N.p., n.d. Web. . <http://www.sophisticatededge.com/can-you-put-eggshells-down-the-garbage-disposal.html>.  

The information on this Web site is designed for educational purposes only. It is not intended to be a substitute for informed medical advice or care. You should not use this information to treat or diagnose any health problems or illnesses without consulting a physician. It is not meant to take the place of health care or services you may need. Please consult a physician with any questions you may have regarding your health.

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