title_body: How to choose a good grinder for a gaggia espresso machine?
upvoted_answer: For espresso, you should use a stepless grinder (meaning, instead of a small number of grind sizes, you can fine tune the dial continuously) with conical burs (which are a certain shape of grinding wheels that provide consistency and precision). A standard recommendation is the Baratza Sette. The Reddit community /r/coffee provides more guidelines on shopping for coffee grinders.