I have been doing a chocolate red for 2 years has turned out great. Recipe starts with a red port blend and half cup of Hershey syrup, allow headspace at startup for syrup cover top of vessel with towel.after primary racking, toss 4 grams of cocoa nibs in with the juice, let sit for 4 months, rack again adding 1/8 tsp of sulfite.6 months rack again this will leave the remaining sediment in vessel and prep wine for bottling.3 months bottle. Then wait 6 months to drink.