- Coffee loses flavor as it oxidizes.
- The oxidation of coffee occurs much slower if it is a whole bean.
- Ground coffee will lose its flavor, mostly the desirable aspects, relatively fast after it is ground.
- Grinding coffee yourself is quite fun!
If you have a blade grinder, you will want to time the grinding process. For percolators you will want a coarse grind of 5 to 10 seconds. For drip or French press, you will want a medium grind at 10 to 15 seconds. If you are making espresso, you will want a fine grind of about 30 seconds.