The Guardian · Sep 28, 2026
Double-dipping transmits mouth bacteria to shared dips
Eating part of food and redipping it into communal dip transfers bacteria from your mouth into the shared food. A study found bacteria transferred to salsa, chocolate sauce, and cheese dip, with salsa showing the most contamination.
Why it matters: Understanding this transmission route helps reduce illness risk when sharing food with others.
Keep in mind: The text does not establish whether the bacteria transferred actually cause illness in people who consume the dip.
AI-assisted summary of the publisher’s feed. News coverage, not an independent study.
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