Hand sealers are tools used in a butchery to seal plastic bags and other plastic packaging. They are used to package and store food and other items in a safe and hygienic manner. Hand sealers are usually operated by hand, and are sometimes referred to as impulse sealers. They create a heat seal on the plastic that is strong enough to keep items fresh and prevent contamination. The heat sealers are also used to create airtight seals, which help to extend the life of the food items. Hand sealers are used in the butchery for a variety of tasks, including packaging, storing, and freezing individual items, and for portioning products into smaller packages.