Our range of external suction sealers from SousVide Supreme™, PolyScience® and SousVideTools.com® are specially designed as an affordable, convenient, and efficient way to package foods in embossed vacuum pouches. Vacuum sealers suck air out of a pouch from the exterior of the appliance, i.e. by placing the open end of the pouch underneath a lid, withdrawing the air and then heat sealing the pouch. With our Vacuum Sealers you can keep leftovers as fresh and delicious as the day they were prepared. Prepare make-ahead meals over the weekend, then store them for easy weeknight reheating, Buy food in bulk then freeze for later—use in meal or serving-size portions, and store meals in serving-sized portions for simple and effective portion control. They are ideal for Sous Vide Cooking.