Research indicates smearing Greek yoghurt on windows effectively cools homes, particularly during heatwaves. A controlled trial at Loughborough University demonstrated that a layer of full-fat Greek yoghurt slashed temperatures by an average of 0.6°C in normal conditions, peaking at a 3.5°C reduction during sunny spells. This method works by forming a reflective film that decreases solar heat gain, offering an alternative to more traditional cooling methods like tinfoil. As UK homes face challenges during rising temperatures, affordable, simple solutions like this are gaining traction among homeowners.
Researchers at Loughborough University found that smearing full-fat Greek yoghurt on windows can cut indoor temperatures by up to 3.5°C during heatwaves.
In a controlled experiment, a layer of Greek yoghurt on one house's windows resulted in an average indoor temperature 0.6°C cooler and up to 3.5°C on hot days.
The dried yoghurt creates a thin white film that reflects sunlight, reducing solar gain similar to tinfoil, which provides greater temperature drops.
With many UK homes inadequately designed for warm weather, low-cost cooling solutions like yoghurt application are increasingly significant for homeowners.
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