So my local Brewery is doing a homebrew competition. They provide the wort and we do the rest. The wort is their Schwarzbier. I don't have the ability to hold lager temperatures so I thought about making it more like a porter. For a 5 gallon batch I want to add 2oz of cocoa nibs and some rasberry extract in the primary. Any thoughts or suggestions for amount of rasberry extract. I've never used raspberries or cocoa nibs.