What is the 15 15 15 rule for coffee?
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. Safety Recommendations. Coffee should be stored properly and consumed within a day to minimize health risks. If coffee must be kept longer, refrigeration can slow down bacterial growth and oxidation. However, refrigerated coffee should be consumed within a few days to ensure safety and quality.