The Gillardeau is originally an Irish oyster. After three years, it is transferred to the oyster beds of Gillardeau to grow further. The oysters are placed in limited numbers on these oyster beds for an extended period, allowing them to receive longer and better nourishment, making them meatier and more flavorful. The great attention Gillardeau pays to its oysters results in the shell being more compact and heavier than a "regular" creuse of the same age. The shell is beautifully white on the inside and has a stunning mother-of-pearl sheen. The Gillardeau creuses are available in sizes 0 to 4, with 4 being the smallest. The Gillardeau oyster is full and fleshy in texture, tender and crisp at the same time. The taste is spicy, sweet, and salty at the same time, with a slight hint of cucumber and a delightful hazelnut aroma.