Here is the full list of all 20 Coffee Break achievements.
Cleaned First Splatter
Completed First Shift
Completed 5 Shifts
Completed 10 Shifts
Completed 20 Shifts
Completed 30 Shifts
Completed 50 Shifts
Slipped on a puddle
Made your first cup of coffee
Made your first cup of coffee with milk
Made your first iced cup of coffee
Iced coffee with milk
Made first espresso shot
Made first latte
Made first cappuccino
Made first bagel
Made first bagel and cream cheese
Made first toast
Made First Toast With Cream Cheese
Made first avocado toast