When selecting oysters, freshness is paramount. Look for oysters with tightly closed shells, free of chips or cracks. The oyster should feel heavy in your hand, indicating a plump and juicy interior. Avoid oysters with gaping shells, as this suggests they are dead or dying.
Consider the size and variety of oysters. Smaller oysters, such as Kumamotos or Olympias, offer a delicate flavor and tender texture. Larger oysters, like Blue Points or Wellfleets, have a bolder taste and meatier texture. Choose the size and variety that best suits your palate and preferences.