How It's Made S28 E4
Cartridge Blades, Chocolate Banana Loaves, Vending Machines, Dive Computers

Fine strips of steel are hardened, sharpened, coated and mounted in plastic cartridges to create replacement razor blades. Banana-flavoured batter and chocolate are mixed, portioned and baked into loaves; payment systems, product dispensers and electronic controls are installed in vending machines; and pressure sensors, processors and displays are sealed inside waterproof dive computers.