Montana Reserve Sauvignon Blanc 2010, £7.49, Sainsbury's

Two more big supermarket price reductions this week starting with probably New Zealand's biggest and best-known brand. Montana were first to create Sauvignon Blanc in the Marlborough region where there are now scores of winemakers producing the stuff. The price represents a £2.50 reduction on a thirst-quenching white packed full of grapefruit and tropical flavours. It's 13.5% alcohol and consistently good.

Mayor De Castilla, £4.79, Sainsbury's

Another great bargain down from £7.19 is a red from Spain's Ribera Del Duero region of northern central Spain – Duero is the Spanish name for the river that become the Douro when it flows into Portugal. Ribera reds are big rivals for Rioja and Mayor de Castilla is the biggest Ribera seller in the home market. They call the grape Tina del Pais which is just a local name for Tempranillo. Lovely, juicy and full of cherries.