Pasta is not a hollow noodle. There are actually many kinds of spaghetti, the more common ones are the round kind, with long segments similar to our hanging noodles, as well as flat, hollow (these are short, about three to four centimeters long), spiral, and shell-shaped ones.
The color of the pasta is yellow, and it will lighten up a bit when it is cooked.
The pasta should not be cooked through, if it is cooked through, the pasta will be rotten, and it will taste soft, when it is cooked, it is cooked until there is a little bit of raw in the middle, a little bit. This tastes good.