Dried fruit packaging in MAP and vacuum systems

Dried fruit packaging in MAP and vacuum systems

Dried fruit is a product that requires special attention during the packaging process. Almonds, hazelnuts, pistachios, cashews, and snack mixes are particularly sensitive to oxidation, humidity, and external agents, all factors that can compromise freshness, crunchiness, and overall product quality over time. For this reason, choosing professional packaging machines and advanced preservation technologies is essential to ensure a safe, durable product that is also enhanced from a commercial standpoint.

Dolzan Impianti Packaging develops automatic solutions for dried fruit packaging designed to meet the needs of modern food companies, combining production efficiency, precision, and maximum product protection.

Modified atmosphere packaging: extended shelf life and quality

Among the most widely used technologies in the food industry is modified atmosphere packaging (MAP), a solution that allows the organoleptic properties of dried fruit to be preserved for longer.

This system replaces the air inside the package with protective food-grade gases, typically nitrogen, reducing the presence of oxygen. This significantly slows down the natural oxidation process of the fats contained in dried fruit, keeping the product fresh and crunchy for longer.

The benefits of modified atmosphere packaging include:

• extended product shelf life
• better preservation of aroma and crunchiness
• reduced waste and product returns
• more professional packaging suitable for retail distribution

This technology is particularly suitable for companies operating in large-scale retail (GDO), food export, and premium snack production.

Vacuum packaging for premium products

In some applications, vacuum packaging is also used, ideal for further protecting the product by almost completely removing air from the package.

Vacuum packaging is often chosen for:

• both large and small format packs
• products intended for long-distance transport
• premium dried fruit lines
• specific industrial applications

This solution further reduces oxidation and helps preserve product quality over time.

ATM or vacuum? Maximum flexibility without compromise

The packaging machines developed by Dolzan Impianti Packaging are designed to provide maximum production flexibility, allowing both modified atmosphere packaging (MAP/ATM) and vacuum packaging within the same line, without the need to modify or replace the system.

This versatility enables companies to adapt easily to different product and market requirements: vacuum can be used for products requiring higher preservation or long logistics chains, while modified atmosphere packaging is ideal for retail and for ensuring optimal shelf presentation.

The ability to switch between both technologies within a single system represents a strategic advantage in terms of efficiency, reduced downtime, and optimized investment.

Fully automated vertical packaging machines

Dried fruit packaging solutions are based on vertical VFFS machines integrated with high-precision dosing systems such as multihead weighers or volumetric systems.

These systems automate the entire process, from weighing to final sealing, ensuring high production speed, reduced waste, and maximum repeatability.

The lines can be configured to produce different packaging formats while always maintaining the possibility of working in both modified atmosphere and vacuum modes.

System efficiency and flexibility

The packaging solutions developed by Dolzan Impianti Packaging represent a concrete advantage for dried fruit companies requiring maximum flexibility and production continuity.

Integrating both MAP and vacuum packaging within the same line allows production to be quickly adapted to different commercial needs without complex system modifications.

This approach optimizes investment, reduces downtime, and increases overall line efficiency while ensuring high standards of product quality and preservation.

Format flexibility and modular investment

The packaging solutions are highly versatile, allowing the production of different bag formats within the same system, including doypack, vacuum packs, block bottom bags, pillow bags, and quad seal pouches.

This flexibility enables companies to quickly adapt production to market demands without investing in separate machines. The result is a modular and scalable system that allows future expansion by adding functions and formats based on real production needs.

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