Poaching
Poaching is a moist-heat cooking method that uses liquid heated between 160°F-190°F (70°C-85°C) to gently cook delicate foods like eggs, fish, shellfish, and poultry without added fats.
Poaching is a moist-heat cooking method that uses liquid heated between 160°F-190°F (70°C-85°C), well below simmering temperature. The liquid should show a slight convective current with small bubbles at the bottom, but not rising to the surface. This gentle technique preserves moisture and creates tender, succulent results without the need for added fats.
How Poaching Works
Three main methods define professional poaching. Shallow poaching partially submerges food in liquid (about halfway up), often with aromatics on the bottom and covered with parchment. Deep or submersion poaching fully submerges the item in liquid, typically used for larger cuts or whole fish, sometimes wrapped in cheesecloth. Par-poaching partially cooks items for finishing later, a common prep technique in busy professional kitchens.
The poaching liquid matters as much as temperature. Common choices include water, stock, broth, court bouillon, wine, milk, or even clarified butter for butter-poaching. Court bouillon—meaning “short stock”—consists of water or stock, an acid (wine, lemon juice, or vinegar), a bouquet garni (bay leaf, parsley, peppercorns, garlic, thyme tied in cheesecloth), and mirepoix (onion, celery, carrot in 2:1:1 ratio). The acid helps protein coagulation, which keeps delicate items like eggs from falling apart.
What Foods to Poach
Delicate proteins benefit most from poaching’s gentle heat. Eggs, fish, shellfish, skinless chicken breasts, and tender cuts like beef or pork tenderloin maintain moisture without drying out. Fruits like pears also poach well, absorbing flavor from sweetened liquids. High-heat methods would toughen or overcook these items, making poaching the preferred technique for preserving texture.
Professional kitchens use poaching to prepare items in advance while maintaining quality. A chicken breast poached at 10 AM holds better for dinner service than one grilled hours ahead. The cuisson—the poaching liquid from shallow poaching—absorbs significant flavor and can be reduced to create a sauce base. Thicken it with beurre manié, monte au beurre, or cream to accompany the poached dish.
Equipment and Temperature Control
No special equipment is required beyond a sauté pan, saucepan, or shallow pot with a lid. An instant-read thermometer is the most accurate way to monitor temperature, as maintaining 160°F-190°F requires attention. Hotel pans work well for poaching larger quantities in the oven, which provides more even and gentle heat than stovetop methods. For eggs, use a ramekin to hold the raw egg before sliding it into the liquid—this technique helps maintain shape and prevents breaking the yolk.
Poaching sits 5-20 degrees below simmering temperature (185°F-200°F), making it the gentlest moist-heat cooking method. This lower range prevents the vigorous bubble action that can break apart delicate foods. The technique uses little to no fat, making it a healthy cooking method that relies on liquid for heat transfer and moisture retention.
Common Uses
Professional kitchens use poaching to prepare delicate proteins in advance while maintaining quality throughout service. Chefs poach chicken breasts, fish fillets, and shellfish hours before dinner service, then reheat gently or serve at room temperature. The technique appears frequently on brunch menus for eggs Benedict and other poached egg dishes. Catering operations rely on poaching for tender, moist proteins that hold well during transport. Fine dining restaurants use the cuisson—the flavorful poaching liquid—as a sauce base, reducing it and finishing with butter or cream to complement the poached item.
