Desiccants are substances designed to draw in and hold moisture from their surroundings by physically clinging to water molecules or undergoing a chemical process. Their primary function is to create an environment with minimal humidity, which is essential during various products’ transportation, packaging, and storage.

At X-Pak Global, we recognise desiccants’ crucial role in our shipping and packaging solutions. We provide diverse desiccant sizes for individual product requirements and extensive storage needs. To protect your cargo, it’s important to understand the optimal application of desiccants within your packaging and shipping operations.

Understanding Water Contamination Sources

Humidity is a substantial risk to the longevity and condition of products and materials, especially when sealed in containers or packaging. Using a dependable desiccant, you can protect your products from the damaging effects of moisture. The four main perpetrators of water contamination in containers are:


      • Moisture-laden air is trapped within the container.

      • Water is present on or within the container’s walls.

      • Dampness is inherent in the products or materials themselves.

      • Humidity infiltrates the product packaging through leaks or seeping through the packaging materials.

    Vital Considerations for Selecting the Appropriate Desiccant 

    When deciding whether a desiccant is required and which one to select, you must assess three critical aspects: (1) the product’s nature, (2) the surrounding environment, and (3) the packaging details: 


        • Product Sensitivity to Moisture: Assess how the product reacts to moisture. Managing the humidity within the packaging is essential for items that require a strictly dry state to avert any potential harm.

        • Understanding Your Packaging: Familiarise yourself with the packaging you’re using, whether it is cardboard, plastic, or other materials. Important packaging attributes include size, breathability, resistance to corrosion, and the type of sealing used.

        • Storage and Transit Conditions: Anticipate the environmental conditions, including weather and temperature variations, that the package could encounter. For example, a shipping container travelling long distances could be exposed to drastic changes in temperature or weather.

      Calcium Chloride

      Calcium chloride boasts over ten times the potency and hygroscopic properties of silica gel. Calcium chloride desiccant sucks up more moisture when the air around it is more humid. This absorption gets stronger as the humidity rises, which sets it apart from other drying agents like silica gel and clay.


      X-Pak chooses calcium chloride as the superior desiccant in their range due to its exceptional moisture-absorbing capabilities, especially in high humidity conditions, providing superior protection for products across diverse industries, including food and beverage, wood and construction.


      The X-Pak Pak-Dry bags can absorb up to 300%, which is 1.5 Litres of water per 500g moisture absorber bag.


      Montmorillonite clay, found in nature, is best known for its capability to absorb moisture and control water capacity. It’s beneficial as it can be revived at low temperatures without significant loss of quality or increase in size. This type of clay is cost-effective, which makes it a popular choice. However, if the temperature increases, it might release some absorbed moisture. Generally, this clay is used in pharmaceutical packaging.


      Different factors need consideration when selecting the correct desiccant and determining how to use it. 

      Related Post: What Shipping Issues Can Container Desiccant Packs Help Solve?

      How to Select the Correct Desiccant for Your Goods

      Understanding desiccant packs’ purpose and appropriate use is vital for upholding your products’ quality during storage and transit. These shipping container moisture absorbers are crucial in managing humidity levels, ensuring your items arrive at their destination in pristine condition. Whether you’re shipping food and beverage, wood, furniture, pharmaceuticals, electronics, or other items, using the right desiccant solution is paramount for your shipping strategy to ensure your goods arrive damage-free.


      If you’re unsure which desiccant to select or how to use them, then
      Contact us
      or call us on 1300 551 281 now. We will guide you through the process and help you protect your products against moisture damage.