LINK Coffee Roaster This exciting new professional sample roaster, developed by Nucleus Coffee Tools in collaboration with Kaffelogic, packs a ton of features into an affordable package. The 41 roast curves that come preloaded onto the LINK were crafted by industry leader and award-winning coffee professional, Sam Corra of Sydney's ONA Coffee. An accompanying app helps you find the ideal roast profile for any given coffee, using density as a key metric. The LINK ships with a shock-absorbent and waterproof travel case, a dosing cup, and a coffee tray. Whether you use it in your professional cupping lab, travel to origin with it, or use it to roast coffee at home, the LINK will take your roasting game to the next level!