Low-speed burr grinders are less likely to burn the beans when grinding it fine for espresso, but may be more expensive than high-speed grinders. [1] X Research source Conical burr grinders and flat grinders both have their fans; one type is not definitively better than the other.
A setting that works for one type of coffee bean may need adjusting for another type. If you frequently switch between beans, you might want to write down which setting works for each of your favorite types of bean.
A burr grinder should produce consistent results, at least until it eventually wears down after many uses. Once you’ve found a setting you like for a particular bean variety, you don’t need to keep testing every time.
You may not be able to achieve the perfect fine grind with this type of grinder. If the grinder won’t produce grounds with the consistency described, settle for no visible large chips of bean being present.
Some people run rice or other objects through their grinders to clean off coffee residue, but this can shorten the lifespan of the burrs. [7] X Research source
Freezing may or may not affect the taste of espresso beans. Opening the container of frozen beans, however, causes harmful moisture to condense on the beans. Divide the espresso beans into multiple containers to limit the number of times each one is opened. Pack tightly to remove most of the air. [9] X Research source
