A citrus garnish can pick up microbes during storage, slicing, and serving. Research examining restaurant lemon wedges has found bacterial contamination, highlighting how food handling can affect something customers barely notice. Unlike ingredients that are cooked, these garnishes generally reach the table raw, without a heating step to reduce bacteria. Washing, clean equipment, and careful handling matter; the fruit’s fresh appearance alone cannot tell you how it was prepared or who last touched its peel.
That does not make every lemon a threat. Finding bacteria does not automatically mean a wedge will cause illness, and many restaurants maintain good hygiene. Still, anyone wanting to avoid this particular exposure can simply request a drink without garnish. At home, wash whole lemons under running water before cutting, use clean knives and boards, and wash your hands. Enjoying that bright flavor need not mean anxiety—just attention to the small details that matter.