vQm Modified Atmosphere Packaging (MAP) helps protect the original quality and extend the shelf life of dried onions during storage and transport. Oxygen is extracted from the packaging and replaced with carbon dioxide (CO₂) or nitrogen (N₂), creating a stable and protective atmosphere around the product.
Dried onions are particularly sensitive to moisture, oxygen and stored-product insects. These factors can cause rehydration, colour changes, loss of characteristic aroma and flavour, mould-related quality deterioration and physical product damage.
Correct drying, moisture control and product inspection remain essential, as MAP cannot restore dried onions that are already too moist, mould-affected or otherwise damaged.
Applying Modified Atmosphere Packaging to semi-bulk dried onions can help processors, exporters, traders and ingredient suppliers preserve product quality during storage and international transport.
High-barrier liners strongly limit moisture exchange with the external atmosphere, helping dried onions maintain their required moisture level and reducing the risk of rehydration, condensation-related damage and mould growth.
By reducing oxygen exposure and limiting external oxygen ingress, vQm MAP helps slow oxidative quality deterioration and supports the preservation of the natural colour and flavour profile of dried onions.
Modified Atmosphere Packaging can be used to treat insects across all life stages in, using low-oxygen, CO₂-rich or N₂-rich atmospheres without conventional toxic fumigants. For applications specifically focused on insect treatment, please read our Non-chemical Insect Treatment page for requirements and further guidance.
By helping dried onions maintain its quality for longer, MAP provides greater flexibility in deciding when products are stored, shipped, processed or sold based on demand, logistics and market conditions.
Designed for efficient vacuum and gas flushing of full big bags and wrapped pallets.
A reliable seal is essential for maintaining the modified atmosphere inside the packaging. The recommended sealer depends on the selected packaging option.
Designed to measure and verify MAP conditions. Measuring the and CO₂ concentrations supports quality assurance and confirms that the required MAP conditions have been achieved.
To transport semi-bulk dried onions, we recommend the following packaging:
All packaging is designed with the vQm valve sealed inside (that enables efficient gas flushing through one secure connection point at amazing speed) Explore the vQm Two-Way Valve →
Its form-stable square design reduces bulging and helps maximise the use of available storage and container space.
If you prefer using palletised sacks, boxes or other existing cacao packaging, you can stack them on pallets and enclose the entire unit in a vQm Wrapping Liner or a Hood liner in case an automated palletizer is used. This protects whole shipments at once without altering your existing bagging process.
In case form-stability is not essential, regular shaped FIBC with MAP liner inside is another option.
Protect dried onions against oxidation, moisture fluctuations and insects while preserving its flavour, appearance and commercial value from origin to destination.
