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As a result, the mixture is more acidic than before, and this higher acidity solidifies the casein proteins.
因此，混合物比之前更酸，高濃度的酸使酪蛋白凝固。
The whey proteins, on the other hand, don’t solidify, and separate out from the casein as liquid.
而另一方面，乳清蛋白不會凝固，所以會從酪蛋白中以液體的形式分離出來。
Yogurt you buy in the store has a stabilizer, usually fruit pectin, to keep the solid casein and liquid whey mixed together.
超市里銷售的酸奶含有一種穩定劑，通常為果膠，它的作用是讓凝固的酪蛋白與液體的乳清結合為一體。
But some of the whey still separates out from the casein, and that’s what you see when you open the yogurt container.
不過，部分乳清仍然會從酪蛋白中分離出來，正如你打開酸奶包裝時所看到的液體。
Whey contains not only proteins but also B vitamins, including riboflavin, niacin, and thiamin, which can’t be found in the solid portion of the yogurt.
乳清不僅富含蛋白質還有維生素B，包括核黃素，煙酸和硫胺素，這些物質在凝固的酸奶中是不存在的。
Because of the nutritional value of whey, your best bet is to mix it back into the rest of the yogurt, then gobble it down!
鑒于乳清豐富的營養價值，你最好把它和酸奶攪拌在一起，然后一口氣喝完！
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