The color on the sausage might be influenced by Wooden: oak creates a brown colour, and hickory makes a reddish shade. Mixing oak with hickory makes an in-between purple-brown color. Some sausages, like German or Polish Hunter Sausages, create their characteristic flavors and aromas by introducing juniper branches or berries https://aldersmokingchips78990.pointblog.net/fascination-about-alder-smoking-chips-83429737