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The next time you’re in a restaurant and you order water with lemon, you might be drinking more than you bargained for. As a matter of fact, those lemon wedges you love could be covered in little, tiny, dirty organisms harmful for your body.

Researchers tested the rinds and flesh of 76 lemons from 21 restaurants collected during 43 visits and found that an incredible 70 percent of them produced microbial growth. The samples were collected as soon as the beverage (either soda or water) was served, before drinking or touching.

Ewww! But that’s not all: Restaurant employees may not be diligently washing lemons or even rinsing them. It’s easy for a server, bartender or chef to cross-contaminate after dealing with patrons, washing glasses and handling food.

“We found in every single group of specimens from different institutions, representations from the three body sites that men usually impart their flora,” Tierno tells HuffPost. Those include bacteria from the intestines (in the form of fecal matter), the respiratory tract (think coughing, talking, sneezing) and the skin. Among the specimens collected were E. coli, staphylococcus epidermidis and candida, a fungus commonly found in the vagina.