Pidän kaikesta paitsi kahvista.

the coffee

Breakdown of Pidän kaikesta paitsi kahvista.

• pitää: to like
• kaikki: all
• paitsi: except; besides

Questions & Answers about Pidän kaikesta paitsi kahvista.

Why is it pidän and not pitän or minä pidän?

Pidän is the 1st person singular form of the verb pitää when it means to like.

• dictionary form: pitää
• minä pidän = I like

Finnish usually drops the subject pronoun when it is clear from the verb ending, so pidän by itself already means I like.
That is why minä pidän and pidän can both mean the same thing, but pidän is the more natural neutral version in many contexts.

As for pitän: that form is just not how this verb changes. The stem changes slightly:

• pitää → pidän
• pidät
• pitää
• pidämme, etc.

This is a normal type of Finnish verb change.

What does pitää mean here?

Here pitää means to like.

That is important because pitää can also mean other things in other contexts, especially:

• must / have to
  
  • Minun pitää mennä. = I have to go.
• to hold / keep in some uses

In Pidän kaikesta paitsi kahvista, it clearly means to like.