The dairy dilemma that split scientists

Milk first

Scientists say tea should be poured on to milk, preventing its proteins from degrading. This is the British Standards Institution’s correct method and used to ensure china did not crack when boiling water was added

Tea first

Experts say that adding the milk last provides more control over the tea’s strength and colour. UCL scientists say if tea is made in a mug, the milk should be added last to avoid interfering with the brewing process