Why should cream soups not be boiled?

Why should cream soups not be boiled?

• A. Because the milk fat will break down, making it thin and watery
• B. Because the starch will over-thicken
• C. Because the color will fade
• D. Because the flavor disappears

Answer: (A)

Cream soups rely on a stable emulsion of milk fat dispersed in a creamy liquid. When the mixture is brought to a full boil, that emulsion is disrupted and fat droplets can come together and separate from the liquid. The result is a thin, watery consistency with a greasy layer, instead of a smooth, creamy texture. To keep the creaminess, heat dairy-based soups gently and avoid boiling after the dairy is added. The other ideas—color fading, flavor disappearing, or starch over-thickening—aren’t the primary effects of boiling dairy in a cream soup; the key change you’ll notice is fat separation.

Cream soups rely on a stable emulsion of milk fat dispersed in a creamy liquid. When the mixture is brought to a full boil, that emulsion is disrupted and fat droplets can come together and separate from the liquid. The result is a thin, watery consistency with a greasy layer, instead of a smooth, creamy texture. To keep the creaminess, heat dairy-based soups gently and avoid boiling after the dairy is added. The other ideas—color fading, flavor disappearing, or starch over-thickening—aren’t the primary effects of boiling dairy in a cream soup; the key change you’ll notice is fat separation.