These bacteria occur naturally in cold places like the Arctic.
They are important in frozen and refrigerated food where they can cause spoilage – even with the cold chain being maintained.
Examples are mould like Penicillium andÂ bacteria like Pseudomonas, Bacillus and Clostridium.
They are an increasing problem in the dairy industry where the cold chain is maintained for longer periods on raw milk, than ever before in history.
Leon the Milkman