What is the 15 15 15 coffee rule?
The rule goes like this: green coffee lasts about 15 months before it goes stale. Roasted coffee lasts about 15 days before it goes stale. ground coffee lasts about 15 minutes before it goes stale. Assuming it’s kept in a cool, dry place, coffee is usually safe to drink for six months after roasting. It won’t taste as good as it originally did, but you can still brew it. Of course, you don’t have to drink old coffee. There are many creative ways to use up beans that have been lying around for several months.The Rule goes like this: Green coffee lasts about 15 months before it goes stale. Roasted coffee lasts about 15 days before it goes stale. Ground coffee lasts about 15 minutes before it goes stale.