‘It bloody works’: why the world’s oldest cheddar-maker uses a ‘milk-source’ heat pump

Barber’s Farmhouse Cheesemakers can draw enough heat from cows’ fresh milk to bring water close to the boil, slashing carbon emissions In many ways, the world’s oldest cheddar-maker hews to tradition. Since 1833, Barber’s Farmhouse Cheesemakers has…

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