Hot rolling is a metalworking process where metal is heated above its recrystallization temperature and then deformed between rollers. This technique allows for significant shaping and reduction of the metal's thickness, making it easier to work with. The high temperatures help to reduce the strength of the metal, allowing it to be shaped more easily. After the metal is rolled, it cools down, which can lead to a rough surface finish. However, hot rolling is efficient for producing large quantities of steel and other metals, making it a common method in industries such as construction and manufacturing.