Luckily, Riedel has a tip for decanter stains that doesn't involve going much further than your pantry. "[T]ry filling the decanter with white vinegar and letting it soak until the wine is removed ...

The Winbirri Vineyards Bacchus 2015, made in Norwich, landed the the Platinum Best in Show medal for the best value white wine made from a single grape variety at the exalted Decanter World Wine ...