Can I drink water that's been sitting in a cup? The definitive safety guide
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4 min read
According to the World Health Organization, over 1.7 billion people globally use a drinking water source contaminated with faeces, highlighting the immense importance of water safety. For most people, a more immediate and common question is the safety of water left sitting out in an open cup overnight. While often harmless, the answer depends on several factors that can impact its quality and taste.
