What is the 15 15 15 rule for coffee?
What is the 15 15 15 rule for coffee? The 15-15-15 coffee rule, also known as Babbie’s Rule of Fifteens, is a guideline for coffee freshness, stating that green, unroasted coffee should be used within 15 months of harvest, roasted coffee beans within 15 days of roasting, and ground coffee within 15 minutes of grinding […]
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