I do not intellect the a single temperature zone - I continue to keep my reds toward the top and whites/champagnes on the bottom and keep the environment on "white." Champagne is ideally served at forty five to 48°File, or even the white wine setting of your wine cooler. http://manueltfrwa.blogthisbiz.com/934240/not-known-details-about-blog-about-wine-coolers