What kind of manufacturing method does 'Tatara' in the dish name refer to?

You encounter this word first at the bottom of a dish or at the beginning of a product name. This is about 'Tatara,' attached to the names of various tableware from Maruhiro.

In ceramics, Tatara (たたら) refers to a slab-forming technique where, instead of spinning clay round on a potter's wheel, clay is rolled out flat into a slab and shaped into vessels. It is a method of placing a clay slab rolled out to an even thickness onto a mold of the desired shape to set its form. Maruhiro's Tatara series is also made through the 'Tatara molding' technique, where thinly stretched clay is placed over a mold and patted by hand to shape it^[1].

Unlike mechanical pressing, it is settled by a person patting it by hand, naturally leaving gentle, soft curves on the edges and surface of the dish where the touch of the hand reached. hmmm, it is a choice to fully preserve the flexible grain of hand-pressed clay among neatly finished, ready-made tableware.