Proper miso storage is important because the color, aroma, and flavors of miso change as it is aged, affecting its quality. The best way to keep your miso fresh is to always store miso in a cool place. Here are more details on how miso changes with age and tips on how to properly store it to keep it fresh and delicious.
Watch Out For Miso’s Color Changes
When you store miso in a hot place, the color gets darker, and when it gets too dark, it’s a sign that flavor may have been lost.
Mechanisms of Miso’s Color & Flavor Change