Feb 11, 2010|
Question

Dear Dr. Brew,

I purchased a bag of coffee already ground – medium ground for drip coffee. I want to grind that already ground coffee finer. Can I put the already ground coffee through a grocery store BUNN grinder in order to produce a finer grind????

Thank you,
Stacie

Answer

Dear Stacie,

No, you should not place pre-ground coffee back into the grinder. The auger system is designed to move whole bean and may become clogged, requiring a service call and cleaning. The regrind would also be finer than you might expect. You can still use the coarser grind though -- simply add another scoop or measure of the ground coffee.

Happy Brewing,
Dr. Brew

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