Mature garlic generally provides a stronger and more pungent aroma compared to young garlic.
The aroma of garlic is primarily due to sulfur-containing compounds, particularly allicin, which is formed when garlic cloves are crushed or chopped. As garlic matures, the concentration of these compounds increases. Young garlic, often harvested before full maturity, has a milder flavor and aroma because it hasn't had as much time to develop these compounds. Mature garlic bulbs, on the other hand, have had ample time to develop a more intense and complex flavor profile, resulting in a more pronounced and robust aroma. The curing process that mature garlic undergoes also contributes to its enhanced flavor and aroma. This process involves drying the garlic bulbs, which further concentrates the flavors and allows the sulfur compounds to develop fully.
To maximize the aroma of garlic, crush or mince it just before adding it to your dish. Letting it sit for about 10 minutes after crushing allows the allicin to fully develop, resulting in a more potent flavor and aroma.