You don't have to blanch. If you blanch the water, you must do it quickly. After the water boils, pour in the washed andrographis paniculata and turn off the fire immediately, and the time is controlled within one minute. After taking out, use ice water to quickly cool down to prevent the color from turning yellow.

matters need attention

Heart lotus itself is slightly bitter. In fact, cold andrographis paniculata can be eaten directly with seasoning without blanching. I have tried both methods. The taste without blanching is tender and smooth, but the aftertaste will be slightly bitter. However, after blanching and cooling, the mixture is basically not bitter, but the taste is slightly tough, so choose which one you like.