Use in conjunction with the Grainfather Connect Control Box thermometer, for accurate control of your wort transfer temperature through the Grainfather Counter Flow Chiller. Avoid long lag time and off flavours by using the Grainfather Wortometer. Adjust your wort and water flow rates from the Grainfather Counter Flow Chiller by dialling in the exact wort temperature your specific yeast requires. The Wortometer is made from copper and is covered in a nickel coating.