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I have a single fridge that holds 2 fermenters & I'm currently brewing an Alt at 15c & a bitter at 19c at the same time. I have the temp probe sat in the alt & added the bitter at 19c. They have been going for 3 days now & are still sat at 4c difference. i'm wondering whether it would be possible to brew a lager at 10c & an ale at 18c using this method - has anyone ever tried it?