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Coffee is a fast-ticking clock. And the end of this stopwatch is nothing you want. Fresh coffee is all about aroma and intensity—the delicate notes of toffee or nectarine that make each bean distinct. Old coffee loses all of this. It tastes instead acrid and flabby, like a cup of wet cardboard.
But freshness is a difficult target. I drink coffee about like a horse takes to water, but I buy it just as impulsively. I am also constantly testing out coffee to find the Best Coffee Subscriptions, and to give…
