Equipment for pressure cooking Recipe: Vegetarian
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A pressure cooker is a large saucepan with a lid, which is usually very deep. (I would always buy the one with the deep lid rather than the shallow, as you can then pile up such foods as Christmas puddings and cook two or three at once, making a further saving on fuel.) The lid is sealed with a rubber gasket and there is a control vent in the top with a safety plug.
The cooker is designed to make use of the steam given off by foods as they cook, or by the water they are cooked in, by confining it so that there is a rise in pressure inside the cooker and a corresponding rise in temperature. The combination of increased pressure and higher temperature forces steam through the food and reduces the cooking time.
The pressure is controlled by small weights which are fitted on the lid - High pressure (15 lb) is suitable for general cooking purposes; Medium (10 lb) is used for pre-cooking fruits for jam; Low (5 lb) is best for cooking steamed puddings. Christmas puddings are especially good cooked in a pressure cooker. The appropriate pressure is always indicated in recipes. Timing starts from when the cooker reaches pressure after the weight is placed on the lid.
Pressure cookers are easy to use, but care must be taken when opening after cooking is finished. The cooker must always be cooled, either by allowing to cool gradually off the heat or by holding under cold running water, and the weight must not be removed until the pressure has equalised. (My mother did this once when cooking beetroot, with the result that the newly-painted kitchen ceiling and walls were suddenly splattered with purple. More importantly, she could have been badly scalded.) Always follow the manufacturer's instructions.
The pressure cooker also has a trivet, which is used inside the cooker to keep foods out of the liquid necessary to produce steam. Vegetables, for instance, are not cooked in water but in steam, and only a small amount of water is needed.Other foods, like steamed puddings, might burn if allowed contact with the bottom of the cooker, so they too can be stood on the trivet. Some pressure cookers have baskets or separators which can be fitted inside the cooker in order to cook several different foods at once. For instance, turnips may be laid on the trivet and the separators rested on top, each containing different vegetables.
If you live over 2,000 feet above sea-level, the cooking must be calculated differently. Again, follow the manufacturer's instructions but in most cases the time will be increased by one minute for every thousand feet and it may be recommended that you simply use a different weight.
Average times for foods cooked in the pressure cooker
Potatoes - 6 minutes
Carrots - 6 minutes
Christmas pudding - 2lb pudding at 30 minutes steaming (without the weights) and 3 hours at 15lb pressure. If you have a cooker with a high lid, you can cook two puddings together at the same time.
Soups are wonderful made in the pressure cooker. The vegetables can be fresh or leftover and quantities can be varied according to taste or what you have.
Copyright Peter Thomson 2012-February-9
What is a healthy balanced diet?
Starchy foods - the basis of the diet
Plenty of fresh fruit and vegetables
Health is also dependent on exercise
Food Supplements pros and cons
Vitamins, Minerals and Trace Elements
Eat whole grain cereals, not highly refined flour
Further tips for a healthy lifestyle
How preserving affects nutrients
Getting Started - Changing your diet
Equipment for pressure cooking
Food mixers, food processors, grain mill
Ready meals, takeaways and cook/chill
Entertaining and special occasions
Picnics and children's party ideas
Diets for life stages - Pregnancy
Feeding Baby- breast or bottle
The main starch grains: rice, millet and sorghum
Other starchy grains and flours: amaranth, buckwheat, quinnoa, teff, wild rice
Starchy roots and tubers: potato, sweet potato, jerusalem-artichoke, yam
Sesame, pumpkin, sunflower seeds
Starchy fruit: breadfruit, banana-plantain, water chestnut
Oils and fats: butter, olives, olive oil
Rice with a hot vegetable sauce
Stuffed vine or cabbage leaves
Chestnuts with brussels sprouts
Low-fat yogurt sauces and dips
Spicy broad bean and pine kernel salad