Aging is the deliberate storage of a food or beverage - commonly meat, cheese, or wine - under controlled conditions to develop flavor, texture, or aroma over time, rather than consuming it fresh. The specific technique and timeline vary by product.
Meat is aged dry (exposed to air) or wet (vacuum-sealed) for a few weeks to several months, during which enzymes break down proteins and fats to tenderize the meat and concentrate flavor. Cheese aging, or affinage, relies on controlled temperature, humidity, and airflow over weeks to years, during which bacteria and mold develop the cheese's characteristic flavor, texture, and rind. Wine is aged in oak barrels or other vessels after fermentation, over months to decades, as tannins soften and flavors integrate. Balsamic vinegar, soy sauce, and some produce can also be aged for similar effect.