In last years survey 2000 tea enthusiasts gave voice to their opinions on the subject ...
The worst thing you can do to a cup of tea? Add too much milk was the overwhelming response, with more than 64% of tea fans citing this as the greatest offence of all.
About 63% also complained about drinking from a stained mug, while 46% admitted their biggest tea turn-off was drinking out of a chipped cup.
Other ways to anger the British tea-drinking population? Forgetting to take the tea bag out before serving and being handed an overflowing, spilling drink.