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.
Roasting Chestnuts in an Oven. 1  1. Preheat your oven to 400ÂºF (205ÂºC). 2  2. Cut an X shape into the flat side of each chestnut. 3  3. Place the chestnuts on a baking sheet.  4. Roast the chestnuts for 15-20 1  minutes. 5. Crush their skins.  6. Peel the 1  nuts. 7.  Serve.