| What is the reason for the film on tea made with tap water and what causes the unsightly rings and stains inside the cup? |
| These rings and stains are formed by calcium and magnesium salts found in normal tap water that may interact with the tea to form visible rings, stains and/or cloudy tea. With a BRITA Pitcher Filter, the tea is clear, the flavor develops fully and the rings and stains inside the cup are reduced.
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