What’s that liquid on top of my yogurt?

And how does it mysteriously appear?

Photo by Michu Đăng Quang on Unsplash

Yogurt is a food gel

Yogurt has a specialized structure called a gel, which means it contains an extensive network capable of capturing and entrapping liquid. Many different types of foods, from gummy bears to jams and jellies, are also gels.

The casein network is strong, but not that strong

The yogurt section at my grocery store. Notice the yogurts that are being stored upside down or sideways. This will lead to a lot of liquid being expelled from the gel.

You better eat that liquid!

The extensive (and expensive) section of whey protein powders in my local grocery store.

Food scientist by PhD. Sharer of food structure, processing, nutrition, trends, & history. Disprover of food myths, lies, & misinformation.

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