When it comes to storing chestnuts, it's all about maintaining the right humidity level. You want to keep them in a spot with low humidity, like a sealed container or plastic bag. This will help to prevent moisture from seeping in and making them go bad.
Now, you might be thinking, but what about freezing them? Well, the good news is that chestnuts can be frozen to keep them fresh for longer! Simply place them in a freezer-safe bag or container and store them in the freezer at 0°F (-18°C) or below.
Another great way to keep chestnuts fresh is to keep them away from light. Light can cause them to become stale or rancid, so it's best to store them in a dark place or use opaque containers. This will help to preserve their flavor and texture.
How to Store Chestnuts - The Kitchen Community
