Blue Balls Cornwall is a cold water swimming group focused on men's mental health. Firebrand put their name on this beer, which is a reasonable thing to do when the collaboration has some actual substance behind it. The hop bill is Strata and Nelson Sauvin, a pairing with strong personalities. Strata brings passion fruit and orange; Nelson Sauvin goes weirder, adding gooseberry and white grape with a herbal dryness underneath. The haze is genuine rather than decorative, the body soft and full for the category. Bitterness is present but measured, sitting in balance with the fruit rather than asserting itself. At 0.5% and 7 calories per 100ml, it drinks light without tasting thin. Vegan and gluten-free.