Bakteri Escherichia coli (E.coli) merupakan jenis organisme coliform yang digunakan sebagai indikator adanya pencemaran dan kondisi sanitasi tidak baik terhadap makanan. Penelitian ini bertujuan untuk mengetahui kontaminasi bakteri E.coli pada makanan di warung makan di wilayah Dramaga. Penelitian menggunakan desain cross sectional, sampel sebanyak 40 warung makan, penentuan adanya bakteri E.coli dengan metode TPC (Total Plate Count), variabel independen diukur melalui wawacara dan checklist kuesioner. Hasil penelitian menunjukkan 65% warung makan terkontaminasi bakteri E.coli. perilaku pengolahan, perilaku higiene, fasilitas sanitasi, dan kondisi warung berhubungan dengan kontaminasi bakteri E.coli pada makanan di warung makan. Fasilitas saintasi dan kondisi warung merupakan faktor yang dominan berhubungan dengan kontaminasi bakteri E.coli pada makanan di warung makan.

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Escherichia coli (E.coli) is a type of coliform organism that is used as an indicator of contamination and unsanitary conditions for food. This study aims to determine the contamination of E.coli in food in food stalls in the Dramaga area. The study used a cross sectional, a sample of 40 food stalls, the determination of the presence of E.coli using the TPC (Total Plate Count) method, the independent variables were measured through interviews and a checklist of questionnaires. The results showed that 65% of food stalls were contaminated with E.coli bacteria. processing behavior, hygiene behavior, sanitation facilities, and condition of stalls are related to E.coli in food in food stalls. The scientific facilities and the condition of the stalls are the dominant factors related to E.coli in food in food stalls.