Some people add sugar...and some have been adding salt!
The US Embassy in London has called an American professor's so-called "perfect" cup of tea an "outrageous proposal."
A Pennsylvania based Chemist had suggested a pinch of salt and some lemon juice should be added to tea.
The Embassy says this has landed its relationship with Britain "in hot water."
It says it'll continue to make tea the right way, "by microwaving it."
These people in the midlands tried it, but had mixed opinions: