Butter
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Capsaicin is essentially water-insoluble and fat-soluble, so the sizzled-butter method is a solvent extraction that also carries the fat-soluble red capsanthin. Measured optima: 130 °C for carotenoids, 150–170 °C for capsaicinoids. The rule to add chilli off the heat lands exactly in that 130–150 °C window.
Yoghurt
Water



