At this time the twigs, old and torn leaves, and anything else that has made it into the basket and isn't top grade tea is picked out.
While the tea is left in calm, the cauldron is heated. Traditionally, the cauldrons were made of iron and fired by wood. Nowadays, they are made of Aluminum and are fired by gas. These changes were made out of modern convenience as it is extremely difficult to maintain a consistent temperature with the traditional wood burning type. It is very important that the temperature is stable and that the cauldrons are properly preheated between 250-350 degrees Celsius.
When the cauldron is ready, the leaves are thrust upon it. The dense pile of vegetation cries out in a hiss or cackle as the the moisture in the leaves connect with the hot heat of the aluminum. The result of this altercation is the smell of fresh tea that is carried by hot steam, released into the air, enveloping ones being. The smell is indescribably good, a smell that one will always remember, a smell that a blog can't give justice to.
The smell of the leaves are accompanied by brisk, tossing hand motions as the tea is careful stirred. It is important they are constantly being stirred as not to prevent burning. The technique used to hand stir the tea allows all of the leaves to be exposed to the heat for an equal amount of time so the flavour is evenly distributed throughout the leaves. As they are exposed to this initial step oxidization stops, the leaf is softened and the life energy of green tea is sealed within.
Cho Ui wrote the following about these steps,
After tea leaves are plucked, one must sort out old chipped leaves, and twigs. Put one and a half geun (approx 1 Kg) of tea leaves into a hot iron cauldron, about 2.5 feet in diameter and hand stir it. The cauldron must be extremely hot before tea leaves are placed into it. The leaves must be stirred quickly, but throughly and fully. One must not change the temperature of the cauldron while stirring the leaves...
It is virtually impossible to express the minute details of stirring tea leaves on a hot iron cauldron. When the heat is just right, the colour and aroma of tea leaves reach the ultimate level of beauty and the miracle of tea takes place, resulting in the mysteriously sublime taste of tea.