Draft at Brewdog Outpost, Rotterdam. Poured a hazy light brown colour with a short-lived frothy white head. The aroma is stewed rhubarb. The flavour is moderate sour, with a smooth, somewhat rich, tart grapefruit, rhubarb, light herbal biscuit dough yeasty palate. Medium bodied with soft carbonation. Barely drinkable for me, but then I can’t stand rhubarb. If only I’d known what was in this before I ordered!