Achieve the optimum coffee blend with the CUB 15-Minute Cold Brew Coffee System. Featuring a vacuum pump and a vacuum chamber, this device produces the perfect java in just minutes. The CUB Coffee System comes with a 32-ounce Mason jar. Simply place stainless steel filter basket inside and fill with your grounds and cold water. Then, put the pump and chamber on top and pump. After a few pumps, wait just 15 minutes and it’s ready. The result is highly caffeinated coffee with low acidity and a smooth flavour. In addition, this coffee stays fresh for up to two weeks. The CUB Coffee System helps you get all the benefits of coffee without waiting for a hot brew system. Finally, because it’s compact, you can use the CUB Coffee System anywhere you go.