When preparing frisée raw for salads, when should acidic elements like lemon juice or vinegar be added?

Answer

Immediately before serving to prevent premature wilting.

Frisée possesses delicate leaves that are susceptible to structural breakdown when exposed to certain chemicals, particularly acids. When using frisée raw in salads, dressings containing acidic components such as lemon juice or vinegar must be incorporated only at the very last moment, right before the dish is served. If these acidic elements are added too early, they react with the leaf structure, causing the desirable crisp texture to be lost as the greens wilt prematurely, compromising the textural appeal of the salad.

When preparing frisée raw for salads, when should acidic elements like lemon juice or vinegar be added?
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