A kettle sour, fruited with loads of cold pressed raspberry juice. Fruity with a refreshing tartness and a rosy colour – a nice balance between sweet and sour. Kettle souring is also known as souring in the boiler. When wort is collected in the boil kettle it is chilled to the appropriate temperature, and inoculated with a culture of Lactobacillus. This produces a sour/tart flavour which we then add fruit to.