Shih Yuan Hsu of Taiwan won the 2022 World Brewers Cup with a carbonic-maceration natural Geisha from Finca Micava on the flat-bottom OREA V3. Over 14g of coffee and 200g of water (1:14.3), the trick is temperature staging: the first 50g pour goes in cool at 70°C, then the remaining three 50g pours at 95°C, one every 30 seconds. The cool opening tempers the wild fermented fruit while the hotter pours build sweetness and structure, paired with a Kalita 185 filter for clean, even flow.