When it comes to sealing food packaging, a variety of options are available. Heat seals use heat to meld materials together and create an airtight seal. Vacuum sealing involves drawing out the air from the package before sealing it shut. Impulse seals use electric current to heat a wire to melt specific material and create a secure seal. Induction seals create an airtight seal using electromagnetic induction to heat an inner layer of foil within the packaging material. Each seal type has unique benefits and uses, so it's important to weigh all your options before choosing what will work best for your product.
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