Flat pouches help preserve the freshness of stored items in several ways:

1. Reduced Oxygen Exposure: Flat pouches are designed to have minimal headspace, meaning the amount of air trapped inside the pouch is reduced. This helps limit the exposure of the stored items to oxygen, which can cause oxidation and spoilage.

2. Barrier Properties: Flat pouches are typically made of materials that have good barrier properties, such as metalized films or multi-layer laminates. These materials help block the transmission of oxygen, moisture, and other environmental factors that can degrade the quality of the stored items.

3. Tighter Seals: The flat design of the pouches allows for tighter and more secure seals, which further prevent the ingress of air and moisture. printed flat pouches This helps maintain the internal atmosphere of the pouch, preserving the freshness of the contents.

4. Space-Efficient Storage: The flat shape of the pouches allows for more efficient storage and packing, which can be beneficial for products that need to be transported or stored in limited spaces.

5. Reduced Headspace: The minimal headspace in flat pouches means there is less air volume for oxygen to react with the stored items, slowing down the rate of oxidation and preserving freshness.

Overall, the combination of reduced oxygen exposure, effective barrier properties, tight seals, and space-efficient storage makes flat pouches a popular choice for preserving the freshness and quality of a wide range of food, cosmetic, and other consumer products.