a grinder can look clean while hiding a tiny coffee graveyard inside.
old grounds and coffee oils collect around the burrs and the exit chute. over time, that can make fresh coffee taste stale.
you do not need to deep-clean it every morning. but you should give it some attention when grounds start building up, the grinder smells old, or you switch between very different coffees.
first, unplug it.
remove the bean hopper. empty the beans. run the grinder for a few seconds before unplugging only if your grinder's manual says that is safe. this clears beans caught near the burrs.
next, open the burr chamber according to the manual.
on many home grinders, the top burr twists out. on others, the steps are different. take a quick photo before removing anything. it makes reassembly much less exciting.
use a dry grinder brush or soft paintbrush to loosen grounds from the burrs and chamber. a small vacuum can help with the loose mess if the manufacturer allows it.
keep water away from the burrs and motor.
most grinder manuals specifically warn against washing the burrs or putting the grinder in water. moisture can cause rust, damage the machine, and turn leftover grounds into paste.
wipe the hopper and grounds bin separately. if the manual says those removable parts can be washed, let them dry completely before they go back on the grinder.
then reassemble it and return to your usual grind setting. run a small amount of coffee through before making the next drink.
my boring but important rule: your grinder's manual wins. the cleaning steps for one grinder can be wrong for another.
tl;dr: unplug it, remove the burr only as the manual directs, brush or vacuum out dry grounds, and keep water away from the burrs and motor.
clean grinder, better coffee. come compare notes with us at couplet.
coupletcoffee.com / @couplet
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