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"  A Colorado man would probably like to see a skull and crossbones across the cups at his local 7-Eleven to alert customers that their coffee, in his mind, is poisonous. Instead, he&amp;#039;s posting warning signs around his neighborhood. Dave Dugan told CBS Denver that he consumed a cup of coffee from a Lakewood 7-Eleven, only to shortly feel his lips burning, his chest burning, and his taste buds go numb. After speaking with a store manager, Dugan believes the coffee contained chemical cleansers from Patco 155, which the manager explained is used to clean out the coffeemaker. &amp;quot;He told me this had happened before and it confirmed all my worst nightmares,&amp;quot; Dugan said to CBS. Another woman told CBS that she, too, thought their coffee tasted funny. However, other stores&amp;#039; managers said that their 3-step cleaning process does not include the powerful substance Dugan named. Find more great food content on Delish:   Search for the perfect recipe from our homepage Find out the latest food news Get a recipe book to save your favorite dishes Sign up for our free newsletters Check us out on Facebook, Pinterest, and Twitter  RELATED: 15 Ways to Enjoy the Sweet-Tart Taste of Rhubarb Big-Batch Summer Cocktails to Keep Your Parties Super Cool 7 Things You Didn&amp;#039;t Know About SPAM "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.delish.com/food/news/a37694/7-eleven-poisoned-coffee/>