Steaming the vegetables rather than boiling.
does soaking vegetables in water before cooking cause leaching of water soluble vitamins and minerals
Cooking vegetables won't "deprive" them of vitamins since they will still have the vitamins after cooking. However, cooking will alter the vitamins' structures (heat denatures things like enzymes and proteins), which can then lower the bioavailability (the availability a nutrient has to be absorbed by the body) of the vitamins once you eat the cooked vegetable. The vitamins and nutrients are still present, but not to the extent they were when the vegetable was raw. To get maximum nutrients and vitamins from vegetables, eating raw or fresh-frozen (vegetables that are frozen at the peak of freshness - all the good stuff is still present) are the best. However, there are some important nutrients that become more bioavailable to the body after the cooking process (such as the antioxidant lycopene found in tomatoes).
Raw. cooking destroys anxtioxidents and vitamins somewhat.
Yes excessive cooking does destroy the vitamins.
Steaming
Vitamin C is easily destroyed during preparation, cooking or storage so follow these easy tips to retain as much of the vitamin as possible. * Eat raw fruits and vegetables as soon as possible after buying them. * Cut vegetables just before eating or cooking. * Cook vitamin C-rich foods quickly in as little water as possible. * Microwave, steam or stir-fry to retain the most Vitamin C.
you rinse vegetables or fruit before cooking
Most people simply use the frying method while cooking their vegetables.
The recommended cooking temperature for vegetables is typically between 350F to 425F.
Many people in the world prefer to steam vegetables while cooking them.
Bias cut vegetables have benefits in cooking because they provide a larger surface area for even cooking, quicker cooking times, and an attractive presentation in dishes.
Fibre.