Heat-sealed means the packaging is sealed shut by applying heat and pressure to join two layers of material together. This creates a tight, secure seal that helps keep the contents fresh and protected from air, moisture, and contaminants.
One example is noissue’s Custom Coffee Bags. These bags are heat-sealed to lock in freshness and flavor, ensuring your coffee stays aromatic and protected during shipping and storage. Heat-sealing also makes the bags tamper-resistant and keeps them airtight.