What volume measurement markings are visible in the Conical Fermenter? Kim June 17, 2020 16:10 Updated The measurements are in both Litres and US Gallons 15 L up to 25 L 4 US Gal up to 7 US Gal Related articles How does heating work in the Conical Fermenter? How accurately does the wall mounted thermometer represent the temperature inside the Conical Fermenter? Calculation - Mash and Sparge Water Volume Instructions - GF30 What are the calculations that are used in the Recipe Creator?