Secrets of a master taster: How to make the perfect cup of tea

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Sebastian Michaelis is a master tea taster for Tata Global Beverages which makes Tetley tea. The company has insured his taste buds for over a million dollars - so you would hope he knows how to make a decent brew. He shares his top tips with Emily Thomas. (Picture: Sebastian Michaelis prepares for a tea taste test, Credit: BBC)