We are proud to announce that our own brand Blanc de Blancs NV Champagne has been voted the best supermarket Champagne in the annual Which? Champagne and sparkling wine taste test. LONDON, 2014-11-21 — /EPR Retail News/ — Tasted by a panel of experts, Sainsbury’s Blanc de Blancs was described as  having ‘tantalising biscuit and brioche-like…