Turn your typical cold brew coffee into a nitro brew with a Nitro Whip and Nitro Charger from iSi! Nitro brew coffee is a fast rising trend in the restaurant business and iSi can help you get behind this fast moving drink without investing in expensive equipment or training - you are good to go in just a few simple steps! NOT COMPATIBLE WITH WHIPPED CREAM OR SODA CHARGERS OR OTHER BRANDS OF NITROGEN CHARGERS DUE TO SAFETY- FOR USE ONLY FOR THE ISI BRAND NITROGEN CHARGERS.