There’s nothing better than cold brewed coffee on a hot summer day – or if you’re like us, any day, really. Cold Brew coffee is naturally smooth and sweet and less acidic than coffee brewed with hot water. The Filtron Cold Water Brewer is a simple way to make several cups of cold brew concentrate. Cold brewing takes between 12 – 24 hours (we recommend 16) but the payoff is huge. This batch should keep you buzzing for days. We recommend a ratio of 1:2 coffee concentrate to water over ice, adjusting to taste.