How to Vacuum Seal Coffee Beans for Long-Lasting Freshness (Barista-Tested Guide)
Vacuum sealing coffee beans does preserve flavor—if you do it right. But do it wrong, and you could actually speed up staling. As a certified Q‑grader, I recently vacuum-sealed three batches of freshly roasted beans—on Day 10 post-roast—and tracked CO₂ and O₂ levels using a gas analyzer. What I discovered changed how I store coffee … Read more