Preserving Peanut Quality Under Hermetic Storage
Peanuts travel long distances and often remain in storage for extended periods. During that time, quality loss is a persistent concern. Rising free fatty acids, flavour deterioration and mould risks
Camellia sinensis L.
Tea leaves
Tea leaves are a delicate, high-aroma commodity where preservation directly influences flavor, character and value. Even when dried, improper storage can cause staling, oxidation or loss of aromatic complexity.
Loose leaf tea is considered shelf-stable, yet it remains highly sensitive to moisture, oxygen and external impurities. Exposure to humidity dulls aroma and flavor, while uncontrolled oxidation can lead to rancidity or flat taste. At the same time, certain teas—such as oolong—benefit from carefully managed aging, where oxygen must be present but strictly controlled. Traditional bulk storage struggles to balance protection with flexibility, especially when portions of the cargo are removed for repacking. Preserving tea quality over time therefore requires precise atmospheric control that supports both protection and intentional maturation.
Challenges in tea preservation
Aroma at stake
Tea preservation is defined by its sensitivity to atmosphere. Moisture absorption is one of the most critical threats, as it rapidly degrades aroma and introduces off-notes. Oxygen exposure accelerates oxidation, which may be desirable for aging only if tightly controlled. Unmanaged oxidation leads to flavor loss and staling.
Bulk handling adds complexity. Tea is often partially unpacked for retail processing, requiring the remaining cargo to be reprotected without altering its internal atmosphere. Conventional airtight packaging cannot restore original oxygen levels once opened. In addition, tea easily absorbs surrounding odors and impurities, which compromises purity and sensory integrity. Successful storage must protect aroma, allow controlled oxidation when needed, and remain flexible throughout handling.
- Moisture absorption
- Aroma loss
- Oxidation control
- Repack flexibility
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The VacQPack solution for tea
Controlled aging
VacQPack preserves tea leaves using bulk-sized Modified Atmosphere Packaging (MAP) that offers precise control over oxygen, nitrogen and carbon dioxide levels. High-barrier hermetic liners protect tea from moisture, oxidation and external impurities, while allowing operators to define and maintain specific oxygen levels for controlled aging. The system supports opening, partial unloading and resealing, after which the exact original atmosphere can be restored using stored treatment programs. This enables consistent quality, flexible logistics and safe long-term storage, whether the goal is maximum freshness or carefully guided maturation of premium teas.
- Consistent product quality and taste
- Reduced food loss and waste
- Full control over product safety
- Optimized total cost of ownership (TCO)
- Non-chemical, organic treatment
Discover why customers like to work with us
Best practice
Learn how customers across different commodities use VacQPack as a best practice for quality protection. By applying natural MAP, they prevent insects, control moisture, and safeguard product value throughout storage and transport.
Particularly on humid and hot areas, problems like condensation, variation of moisture content, oxidation and in some cases insect infestation, are common on the difficult task of keeping the quality of soybean seeds during storage.
The refrigeration is the conventional technique for preservation, but it requires a great deal of investment on infrastructures and implies significant expenditures on energy. Besides, once the seed leaves the refrigeration mode, gets again vulnerable and enters in a rapid degradation process.
Infisght from our research expert
Marie-José
Research Expert
m.vanlitsenburg@vacqpack.com
Our research Expert Marie-José translates scientific studies into practical MAP insights, helping producers safeguard quality from origin to arrival.
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