Primula’s Brew Core is part of our MyBev Interchangeable Core System. that can be used with the Flavor It, Flavor Now, The Big Iced Tea, Cold Brew Carafe and Shake & Infuse Beverage Systems. Just place your favorite loose leaf tea or ground coffee in the filter and fill the pitcher or carafe with cold water and brew 24 hours for coffee or 4-10 hours for tea. The Brew Core features stainless steel mesh, an easy-to-clean, removable bottom and is Dishwasher safe.