Here's Exactly What Dry Aging Does To Beef And Steak - Tasting Table
Briefly

Dry aging steak enhances flavor and tenderness through a controlled decomposition process. This method allows moisture to evaporate while natural enzymes break down muscle fibers. This leads to meat that is richer and more flavorful. Initially, meat goes through rigor mortis, which can toughen it. However, enzymes and lactic acid rapidly improve texture. Control over the aging environment is crucial, as it influences the final quality of the steak, achieving a buttery, complex flavor profile.
The process allows moisture to evaporate and natural enzymes to break down the muscle, resulting in a steak that's richer, more tender, and packed with umami.
Dry aging adds complexity to beef in every way - it deepens the flavor, enhances tenderness, and creates a more refined, almost buttery texture.
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