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Leave your drink unattended and there's a possibility that while you were away, somebody has put something in your drink. Not to worry.
Using a swizzle stick, a straw or even your finger, place a drop of your drink onto both test circles of one test character on either the coaster or test strip. Rub gently. Wait until it dries. If either circle changes to a |
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view a demonstration, choose a video clip below: |
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