Here is the full list of all 11 Ampu-Tea achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Really lose your temper.
Broke a cup.
Finally made a perfect cup of tea.
Broke your arm. Again.
Played the game 500 times.
Added milk to a drink
Added hot water to a drink. AFTER the teabag.
Added sugar to a drink
Added a teabag to a drink. BEFORE the water.
Clear every object off the table.
Robot arm powered up and ready for action - time for you to make your first hot drink.