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but I’d say it’s the opposite: A common error in people who love coffee but don’t drink espresso is overvaluing a grinder. Almost every cheap one will be okay as long as it’s a burr grinder.Not all burr grinders are made the same. The more expensive ones tend to be more ergonomic.
I think one mistake some people make getting into manual grinding is buying a Hario Skerton (or one of its many clones) as their first grinder. That's probably one of the more poorly-designed grinders out there, despite the Hario brand.
Grinding consistency (not too many fines or boulders), which is also higher with certain grinders, also plays a big part in making sure that coffee's extracted evenly.
