Here is the full list of all 24 Coffee Talk achievements. It takes around 10-12 hours to unlock all of the achievements on Windows.
Reach a certain point in the story
Create and serve your first latte art
Brew your first drink
Start a new game
Trash your drink for the first time
Serve the wrong drink for the first time
Meet all of the main characters
Trash a total of 25 drinks
Listen to all of the songs
Play the story mode to conclusion once
Spent a total of 1 hour making Latte Art
Serve 10 correct drinks in a single session of challenge mode
Help Neil to help you
Serve 25 correct drinks in a single session of challenge mode
Finish Gala and Hyde's arc
Finish Lua and Baileys' arc
Finish Rachel and Hendry's arc
Serve Gala Had when Gala turns into a werewolf
Find the secret behind the barista
Unlock all special drinks
Unlock all of the characters social media profile
Serve 50 correct drinks in a single session of challenge mode
Unlock all the artworks in the Gallery
Unlock all achievements