How to boil vegetables to ensure they retain their nutrients?
Add a little salt to the water in the pot, bring it to a rolling boil over high heat before adding the vegetables; this will help retain the maximum amount of nutrients in the dish.
Many people consider boiling vegetables to be one of the simplest cooking tasks. You just need to clean the vegetables, put them in boiling water, and wait for them to cook. However, the truth is that it requires more skill than that, for example, how to wash vegetables properly, whether or not to cover the pot while boiling vegetables, how to preserve the flavor, color, and nutritional value of the vegetables during the boiling process, etc.
According to nutrition experts, vegetables are an important part of the diet, providing many nutrients, especially vitamins and antioxidants. However, when vegetables are boiled, vitamins C, B1, and folate leach into the water. The longer vegetables are exposed to heat, the more vitamins are lost. Cruciferous vegetables like broccoli and cauliflower, in particular, can lose more than 50% of their antioxidants when boiled.
As a general rule, when boiling vegetables, it's best to keep cooking time, temperature, and liquid to a minimum to preserve their nutrients. That's why steaming is one of the best ways to cook most vegetables.
For root vegetables like carrots, potatoes, and kohlrabi, cut them into small pieces—the smaller the better—to speed up cooking time. This also reduces nutrient loss and helps retain crispness. The pieces should be of uniform size for even cooking.
When washing vegetables, avoid scrubbing them too vigorously; rinse gently with clean water. After washing, don't let the vegetables sit for too long before boiling, as this will cause them to lose their freshness. Boil the water first, then add the vegetables; don't add them with cold water at the beginning, as this will cause them to lose more nutrients. You need to boil the water over high heat, making sure it's boiling vigorously before adding the vegetables.
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Vegetables should be boiled over low heat, and salt should be added to the boiling water to help them retain their vibrant green color. |
Many people wonder whether to cover or leave the lid open when boiling vegetables. Studies show that leaving the lid open helps vegetables retain their vibrant green color. If covered, the acids and chlorophyll in the vegetables react with the boiling water, causing them to lose their color. However, leaving the lid open means the vegetables take longer to cook, resulting in a loss of nutrients.
Therefore, to keep vegetables vibrant green and retain more nutrients, you can add a small spoonful of salt to boiling water and cover the pot tightly before adding the vegetables. The salt helps preserve the vegetables' green color and reduces vitamin loss compared to boiling them with the lid open. It also enhances the flavor, making them both delicious and nutritious.
Taste the vegetables when they are cooked to your liking; don't let them boil for too long. Eat them while they are still hot. Eating cold vegetables will cause a significant loss of vitamins. Especially, do not leave vegetables overnight.
