Cooking Under Pressure: An updated Technology
Technology has laid its hands on every field were humans are involved. Form advanced planes to medical equipment to house items. Cooking, a major requirement for the mere survival has undergone evolution along with all the other things. Pressure cookers had made their way in the process. The pressure cooker may well be the savior of home cooking in a society that’s always pressed for time. In fact, the PC is to whole foods what the microwave oven is to convenience foods. Better technology has eliminated the safety risks that once unnerved wary cooks, leaving only the benefits—fragrant; succulent stews in half an hour or so.
The basic principle behind pressure cookers, is applying steam heat to food in an airtight environment, which builds up pressure caused due to the trapped steam inside the pot allows temperatures to rise above those attainable in non-pressurized vessels. As a result, when compared with conventional cookery, most foods cook 70% faster with 50% less fuel. It takes about five to eight minutes, for the required pressure to be achieved. When compared with the microwave ovens this time is considerably less, which favors pressure cookers over microwaves. Only fish is equally fast in both systems.
Flavor is another selling point. Because all the juices and aromatic oils are trapped inside the pot, meats emerge tender and succulent, stews are thick and rich, soups and sauces taste as if they have been simmering slowly for hours. The short cooking time combined with the airtight cooking environment also results in maximum retention of nutrients.
Cooking Process and Precautions: Pack the cooker with the prepared ingredients and the recommended amount of liquid, and make sure it is not more than two-thirds of its capacity. Close the cooker, and place it on high heat. Align the steam release to trap the steam properly. When full pressure is achieved reduce heat to just maintain pressure and start the timer. Cooking times may vary slightly, depending on many factors: the size and age of the items.
When recommended cooking time is over, remove the unit from the heat, and depressurize it according to the manufacturer’s instructions or recipe directions. It can be done by using the quick pressure-release valve, running cold water over the cooker or letting the pot stand off the heat until pressure reduces naturally.
In general, the pressure-release valve is recommended when timing is critical, as with vegetables, which overcook quickly. If you need a quick loss of pressure with these foods, let the pot stand off the heat for a few minutes first, then very gradually release the steam with the valve.
Never try to open or force the handles apart, of a pressure cooker while there is pressure inside. The lid lock in the preferred models prevents opening until all pressure is released. It’s a good idea to gently shake the pot to further ensure that all pockets of pressure are gone. Open the lid away from your face, in order to direct any remaining steam away from you. Most manufacturers advise not to pressure-cook reactive foods—that is, those that sputter, splash or froth excessively.
ADAPTING RECIPES: Pressure-cooking requires liquid to produce the necessary steam; never use less liquid than instructed, even if you reduce the amount of food. For steaming vegetables or pudding, you need a minimum of one-half cup water. Foods that absorb liquid, like beans, grains and dried fruit, require adequate amounts to compensate.
TIMING: Careful timing is the key to this technique; begin the count as soon as pressure is reached. When the suggested time is “zero,” remove the cooker from the stove as soon as full pressure is achieved, and quickly reduce the pressure. In contrast to the microwave, the quantity of the food in the PC doesn’t alter the cooking time once it’s up to steam. If you intend to let the cooker cool naturally, rather than reducing pressure quickly, factor this into the timing. And don’t forget: Once pressure is released, the cooker should be opened to prevent further cooking.
VEGETABLE COOKERY: Although many vegetables cook quickly with other methods they emerge from the PC even faster and with more of their color and nutrients intact. The best method is pressure steaming: Just place the vegetables in the steaming basket, and set them over plain water or seasoned broth.
DRIED BEANS: Healthful, delicious beans require to be soaked all night and cooked all afternoon. With a pressure cooker, beans may or may not be soaked. Un-soaked, they need longer cooking and more water, but they also froth less and hold their shape better. Because legumes expand during cooking, never fill the cooker more than half full.
GRAINS: Since grains double the total volume as they cook, do not fill the pot more than halfway. Grains should be cooked directly in liquid, not in the steam basket. Cooking small seeds like millet, kasha, and cracked wheat, which may block the steam vent is not recommended.
BARLEY, WILD RICE, TRITICALE, OATS, AND WHOLE WHEAT AND RYE BERRIES: Rinse and drain the grain, and combine it with twice its volume of water. If desired, add one-tablespoon oil or butter per cup of grain to minimize foaming.
MEAT AND POULTRY: Since the PC must have liquid to function; it’s particularly suited to stews and pot roasts. Less expensive cuts tenderize beautifully in the moist heat. Sear the meat in a small amount of oil in the open cooker, if desired. The more bone and the more tender the cut, the less cooking is needed.
COMBINATIONS: To pressure-cook several different foods with varying cooking times begin with the longer-cooking item, reduce the pressure when partially cooked, add additional foods at appropriate times, and bring pressure back up again. Use the chart provided for additional preparation and cooking instructions.
Shopping for a Pressure Cooker:
The important features that are to be considered while selecting a pressure cooker are time and safety. It must have multiple safety systems, including at least two pressure-release devices to guard against explosion. A safety lock in the lid that makes it impossible to open the pot while pressure exists inside. A quick pressure-release valve; it allows you to reduce pressure manually, rather than leaving the pot to sit until the pressure declines.
Latest models have a built-in, almost silent pressure indicator with only one or two automatic settings, so the cookers are much less complicated to operate. The single-level pressure cooker, which is the simplest type to monitor, is perfectly adequate for home use. Today, many are stainless steel rather than aluminum, which is preferable for its weight. It has a heavy aluminum core or an aluminum-clad base for even heat and thermal retention.
Over several designs, the traditional-looking pot is probably the best choice. Some have complex cover systems reminiscent of medical sterilizers are intimidating. Those that force you to slide the lid into the pot are awkward and often messy to use. Heat-resistant handles with two grips, or a single grip of, non-slip material-are recommended.
All models include trivets for steaming vegetables, and several come with steaming baskets as well. Pressure cookers range in capacity from two to 20 quarts. A six-quart pot is adequate for most households, keeping in mind that, the pot can be only two-thirds full. PC’s require liquid ranging from two cups to a quarter cup, to achieve proper pressure. If you often cook small amounts of food, a model that functions with less liquid will be more useful.
Though pressure cooker has advantages of time and cost effective, it has a certain amount of risk of exploding. Proper safety precautions and better understanding and implementation of user manuals make the pressure cooker user-friendly and a daily use culinary item.