Ratio Four Series 2 Coffee MakerThe Ratio Four Series 2 is the answer to a question specialty coffee has been asking for years: why can't automatic drip taste as good as manual pour over? Now it does. This compact brewer delivers the precision blooming, water distribution, and temperature control of a skilled barista but at the push of a button. Brew a single cup with your own V60, pull 22 ounces into a thermos for the road, or dial in a half batch for two. The external water tank
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