Jason's Chatter/ posts/ That “rösti”? Edit RecentChanges Preferences ?Discussion The rösti is great with the venison roast Nathan made. The rösti reheats well in an oven at 400°F+. The higher the temperature, the more it'll re-fry on the outside. At 400°F, the outside re-fried without burning while the inside re-heated. Comments on this page are closed.