Boiling water makes clearer ice cubes

Science
Boiling water makes clearer ice cubes

Boiling water before freezing removes dissolved gases and impurities, creating remarkably clear, slow-melting ice cubes perfect for drinks and admired for centuries.

Ever wonder why some ice cubes are cloudy and others crystal clear? The secret is boiling the water first. This process removes dissolved gases like oxygen and carbon dioxide, which cause the tiny bubbles that scatter light and make ice look murky. Unboiled tap water traps these gases, resulting in opaque cubes.

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