Limon, also known as lime, is a citrus fruit commonly used in Mexican cuisine to add a tangy and refreshing flavor to dishes like Tacos al Carbon. The acidic juice of the limon helps to tenderize the meat and enhance its natural flavors. To use limon as a topping for Tacos al Carbon, squeeze fresh lime juice over the assembled tacos. The tangy and zesty limon juice adds a burst of freshness and brightness to the tacos, balancing out the rich and smoky flavors of the grilled meat. Adjust the amount of limon juice according to your taste preference. Enjoy the combination of the grilled meat, fresh toppings, and tangy limon juice for a delightful and flavorful meal!