What is the white powder on lemongrass?
Chef's answer
But if they are sticky from that, it is not the problem. My best guess (without seeing them) is that the white "powder" is discarded exoskeletons of aphids (those exoskeletons are white) and the stickiness is from aphids creating honeydew. Look carefully for aphids..
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That white stuff oozing out of your salmon as it cooks is just coagulated protein, and it's perfectly safe to eat. According to America's Test Kitchen, as salmon cooks, its muscle fibers contract, causing it to wring out the fish's internal protein, or albumin.
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Sometimes when you cook Bacon, some white gloop oozes from it. This is salt and water.
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Answer has 5 votes. Sometimes when you cook Bacon, some white gloop oozes from it. This is salt and water.
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