Why is the flavor contribution of Kaffir lime leaves often considered irreplaceable in specific cuisines?

Answer

They lend a unique, sharp, floral zest that regular lime substitutes cannot perfectly replicate

The leaves are essential in cuisines like Thai cooking because they impart a unique, sharp, floral zest that cannot be perfectly substituted by regular lime juice or zest.

Why is the flavor contribution of Kaffir lime leaves often considered irreplaceable in specific cuisines?
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