What exactly is “pressure-cast aluminum”?

SCANPAN is “forged” from molten aluminum under 250 tons of pressure. The molten aluminum is poured into a lower mold, with an upper mold coming down to “squeeze” the liquid aluminum into the shape of the pan. The 250-ton pressure gets rid of any air pockets or other inclusions, thus ensuring perfect heat distribution without hot spots. Only pressure-cast aluminum will guarantee this flawless performance.