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Old 12 March 2011, 07:09 PM
St. Alia St. Alia is offline
 
Join Date: 06 October 2010
Location: St. Paul, MN
Posts: 877
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They just clog ours. I put ice and citrus in the disposal sometimes to freshen it up, but have never had a problem with the sharpness of the blades. However, a quick google search advised just that (ice and citrus) to sharpen the blades as well:
http://www.ehow.com/how_4529424_shar...al-blades.html
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