Sous vide vacuum bags are intended for food preparation methods where ingredients are vacuum sealed before controlled-temperature cooking. At Lanfon Hwakon, we develop sous vide vacuum bags for meat portions, poultry, seafood, vegetables, prepared dishes, and other suitable sous vide applications. Bag dimensions can be adapted according to portion size, food shape, preparation method, and sealing equipment. For restaurants and central kitchens, selecting consistent bag sizes can make portion preparation and kitchen organization more efficient. We consider loading space, sealing allowance, vacuum compatibility, cooking application, handling, and storage before use when discussing specifications. Sous vide vacuum bags can be supplied in several dimensions to support individual portions, larger food-service packs, or different menu items, allowing professional users to standardize their preparation process rather than relying on one generic bag size.