Water…Coffee’s Largest Variable | Coffee School

By now, for coffee professionals and café owners, there is a better than likely chance they’ve heard the phrase “Coffee is 98% water.” Does this really mean anything? If so, what action does it illicit from people?

As the Specialty Coffee representative for a commercial water treatment manufacturer, I work with café owners, coffee roasters, coffee equipment manufacturers, equipment distributors, service techs and baristas every day. Without question, the single largest problem I find across all of these groups is the negative side effects that water has on their equipment and coffee.

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