Pumpkin Center, Kern County, California. This article is about the unincorporated community in Kern County. For the unincorporated community in Lassen County, see Pumpkin Center, Lassen County, California.
When to harvest chestnuts? Chestnuts donât ripen at the same time and chestnut harvest time can span as much as five weeks, although the nuts generally ripen in a 10- to 30-day span of time in late August and September. Allow the nuts to fall from the tree naturally.
If stored at room temperature (above 50Â°F [10Â°C]), chestnuts usually mold within 2 weeks.Chestnuts will roast properly and taste fresh if you store them at 40Â°F (4Â°C) and at least 90 percent relative humidity within 1 or 2 days after harvest.