Many countries and regions have already enacted legislation to limit or ban the use of non-degradable products, further promoting the development and application of biodegradable alternatives.

In response to this global trend, we have introduced a new biodegradable desiccant product. This desiccant is primarily made from montmorillonite, a natural mineral composed of silicates, magnesium, and aluminum, which is abundant in the Earth’s sedimentary rock layers. Compared to synthetic materials, montmorillonite is a natural resource that can easily return to the environment after disposal. Furthermore, its extraction and production processes generally have lower energy consumption and carbon emissions, significantly reducing its environmental impact.

For the packaging, we have chosen kraft paper, which is free from fluorescent agents, unbleached, and entirely devoid of plastic or other non-degradable materials. Additionally, the product features a plastic-free heat-sealing process, ensuring that the desiccant can gradually decompose in natural conditions and ultimately return to the soil.

This biodegradable desiccant not only addresses moisture control needs but also aligns with environmental sustainability goals.

First, silica gel desiccant has outstanding adsorption properties and fast moisture absorption capabilities, able to absorb up to 30% of its own weight in moisture. It also boasts excellent chemical stability, meaning it does not react with other substances, making it safe for use in industries with stringent chemical safety requirements, such as food, pharmaceuticals, and electronics, without risking contamination or damage to the protected products.

Additionally, silica gel is non-toxic, odorless, and non-volatile, making it particularly well-suited for industries where safety is paramount. Its high mechanical strength prevents it from breaking easily, ensuring that no dust or particles leak out during use, which is crucial in environments that demand cleanliness. Another major advantage is that silica gel desiccant can be regenerated simply by heating, allowing for multiple uses and reducing resource waste. This recyclability also gives it an environmental edge. Silica gel is non-polluting and relatively easy to dispose of, aligning with modern environmental standards.

Compared to other desiccant types, silica gel has a unique visual advantage: many silica gel products contain color-changing indicators. When the desiccant is saturated with moisture, the color changes, making it easy for users to know when a replacement is needed. This visual feature makes silica gel particularly appealing in many applications. Finally, silica gel desiccant is globally recognized and meets various international standards, including those of the FDA and the European Union, making it widely used across industries.

For all these reasons, silica gel desiccant has become the mainstream choice in the desiccant market.

A key point to note is that container wooden floors always contain some level of moisture, with the recommended limit being no more than 14%. However, in practice, the moisture content often exceeds this limit, sometimes reaching over 30%. Therefore, it’s crucial to avoid using recently cleaned, still-wet containers. It’s also essential to block the container’s ventilation holes properly during use. Furthermore, you should use moisture detectors to check the packaging of the cargo, aiming to keep the moisture content below 9%. Similarly, pallets and other wooden materials must be kept as dry as possible.

After completing these preliminary steps, it’s important to use container desiccants, which can absorb excess moisture inside the container. By doing so, you can effectively control the moisture levels within the container and prevent damage to the cargo.

First, during production, strict hygiene control is crucial to minimize microbial contamination at the source. Additionally, selecting the right packaging materials and storage conditions is vital. Ultraviolet (UV) light can trigger oxidation reactions in the fruit, causing discoloration and spoilage, while high temperatures can promote microbial growth and accelerate decay.

For optimal preservation, it is recommended to use opaque, airtight packaging and store the dried fruits in a cool place. Pairing the packaging with products that extend shelf life, such as desiccants and oxygen absorbers, is also key. Since dried fruits typically contain high moisture levels, using desiccants can help absorb excess moisture inside the packaging, reducing humidity and preventing the growth of bacteria and mold. Additionally, the ingredients in dried fruits—such as gelatin, vitamins, and pigments—are susceptible to oxidation, which can cause color changes, hardening of the texture, and a decrease in aesthetic appeal, taste, and nutritional value. Therefore, removing oxygen is also essential, and a common method for doing this is the use of oxygen absorbers.

So, should you choose desiccants or oxygen absorbers for dried fruit packaging? Our company has recently launched a new moisture-proof oxygen absorber that uses iron powder oxidation to absorb oxygen within the packaging. It can reduce the oxygen concentration to below 0.01% within 0.5 to 2 working days, while also offering a 25% moisture absorption rate. This product provides dual benefits of moisture control and oxygen absorption, making it an excellent choice for preserving dried fruits.

When you need to move large quantities of goods over long distances, a cargo ship acts like a massive, mobile warehouse, handling everything in one go—and at a surprisingly low cost. Even more impressive, sea freight is the only transportation method that can reach every corner of the globe, making it indispensable for global trade. However, container shipping isn’t known for its speed. For example, it can take over 20 days for a ship to travel from China to the Americas, and over 30 days to reach Europe. During these long voyages, the wooden floors of containers and the goods inside have plenty of time to release moisture, while external moisture can seep in. Additionally, the unpredictable weather at sea and the large temperature differences between day and night often cause the accumulated moisture inside the container to condense into water droplets that can drip onto the goods, much to the dismay of shippers.

Yet, the allure of container shipping remains strong. To mitigate the risk of moisture damage, shippers employ a variety of strategies, from selecting appropriate packaging materials and controlling the moisture content of the goods to ensuring the container is properly sealed. They also often place desiccants inside the containers—like little helpers—to absorb excess moisture and keep the interior environment dry, ensuring that the goods arrive safely at their destination.

By using these clever precautions, shippers can rest easy knowing their goods won’t suffer from moisture damage during container transport.

First, it’s important to clarify that not all desiccants can be reused. Chemical adsorption desiccants, for example, undergo a chemical reaction when they absorb moisture, forming new substances, which makes the process irreversible and unsuitable for reuse. Take calcium chloride desiccants, for instance. The molecules in calcium chloride have a strong affinity for water and react chemically with moisture to form hydrates, thus achieving moisture absorption. However, once calcium chloride has absorbed enough moisture and formed hydrates, it cannot be reused.

In contrast, reusable desiccants are mainly those that operate through physical adsorption. These desiccants have excellent structural stability, do not deform after absorbing moisture, and do not undergo chemical reactions or produce new substances. For example, silica gel desiccants can be reused by regenerating them through heating after they have absorbed moisture. The specific method involves placing them in an oven or microwave, with the temperature controlled between 100°C and 120°C (212°F to 248°F) for 30 minutes to an hour, depending on the size and moisture content of the desiccant.

It’s worth noting that most silica gel desiccants on the market are designed for single use, and their packaging materials may not withstand high temperatures. Therefore, if you intend to use reusable desiccants, you should select ones with packaging materials that can endure high heat.

The secret lies in that unassuming little externally controlled alcohol preservation card. Don’t underestimate this tiny card—it’s the guardian of your bread’s freshness. You might wonder, why not use an oxygen absorber instead? Well, both have their merits, but the externally controlled alcohol preservation card is better suited for bread products.

This preservation card is made by infusing food-grade paper with alcohol. When used, it acts like a protective shield around the bread, providing both contact sterilization and fumigation sterilization without making the bread bag wrinkly—something oxygen absorbers can’t compete with. Moreover, the alcohol preservation card has a unique advantage: it inhibits the growth of both anaerobic and aerobic bacteria, whereas oxygen absorbers primarily target aerobic bacteria. Even more impressively, this card is unaffected by the food’s pH level or the oxygen permeability of the packaging, making it a more cost-effective option.

Of course, nothing is perfect. While the externally controlled alcohol preservation card has many benefits, it can’t prevent the oxidation of food oils, and it might not be suitable for foods that don’t pair well with the taste of alcohol. However, bread typically has a short shelf life, and the alcohol scent complements it well, making them a perfect match. So, the next time you’re enticed by the delicious aroma of bread, remember the little hero behind it—the externally controlled alcohol preservation card.

To answer this question, it’s important to consider two different scenarios. The first scenario is when container desiccants are used to protect goods from moisture damage. The second scenario is when container desiccants are exported as goods themselves.

When container desiccants are used to protect goods from moisture damage, their role is similar to that of packaging materials. They are typically used to protect goods from moisture and mold during transportation. As part of the packaging, they are usually considered a standard protective measure. In a routine customs inspection, they generally do not attract special attention and do not require specific reports or documents. As long as they are used legally and are not disguised or used to conceal other illegal items, they typically do not pose any issues.

However, when container desiccants are exported as a product, they are treated as independent chemical products and are subject to stricter regulatory oversight. In this case, suppliers usually need to provide a series of certification documents to ensure compliance with the destination country’s legal and environmental requirements. These documents may include the Material Safety Data Sheet (MSDS), compliance with RoHS and REACH regulations, and hazard assessment reports for air and marine transport. Additional certifications may also be required depending on the specific regulations of the destination country.