Soak vegetables in diluted saltwater when washing
Rau muống is a familiar dish to the Vietnamese people. Rau muống is rich in vitamins A, E, C, and iron, which are good for health. However, rau muống is also a type of vegetable that is easily contaminated with heavy metals due to its living environment, which is often in ponds, stagnant water. Therefore, to ensure your health before stir-frying or boiling rau muống, you should take an extra step which is soaking rau muống in diluted saltwater.
Soaking rau muống helps to eliminate toxins and clean the vegetables from bacteria and chemicals. In addition, during the process of boiling rau muống, you should use high heat and leave the pot uncovered to allow the chemicals to evaporate.
Add salt to the boiling water for blanching vegetables
Salt is one of the agents that increases the temperature of water, which helps to significantly reduce the blanching time. That’s why the blanched rau muống will be evenly cooked, crispy, and fresh without being soggy or turning red from overcooking. Moreover, adding salt to the blanching water also helps to enhance the flavor and attractiveness of your family’s blanched vegetable dish.
The recommended amount of salt for blanching rau muống is about 1/2 – 1 small spoon of salt, depending on the amount of water in the pot.
You should add salt to the water from the beginning and wait for the water to boil before adding rau muống. When the vegetables are cooked, you can scoop them out and place them in a bowl of cold water to maintain their green color and crispiness.
Add vinegar/lemon juice to the boiling water for blanching vegetables
When blanching rau muống, adding a little bit of vinegar or lemon juice will make the blanched vegetables greener and more visually appealing. Just using a small amount of vinegar/lemon juice will help to retain the color of the vegetables without affecting their original taste.
The method is very simple, just add about 2 teaspoons of lemon juice or vinegar to the pot of boiling water for blanching rau muống. When the water is boiling, add the vegetables and scoop them out when they are cooked.
Completely submerge the vegetables when boiling