A desiccant is a hygroscopic substance that absorbs and holds moisture from the surrounding air. It is widely used to control humidity, prevent mold, mildew, corrosion, and product degradation in packaging, storage, and transportation scenarios.

The most widely used desiccants in the market include:

• Silica Gel Desiccant: Non-toxic, chemically stable, reusable, suitable for food, electronics, and pharmaceuticals.

• Clay (Bentonite) Desiccant: Cost-effective, made from natural minerals, ideal for industrial goods, container shipping, and leather products.

• Calcium Chloride Desiccant: High absorption capacity (up to 300% of its own weight), suitable for high-humidity environments like sea freight and large cargo storage.

• Molecular Sieve Desiccant: Precise adsorption, high-temperature resistance, mainly used in industrial gas drying and precision instrument protection.

Follow these steps to select:

1. Confirm the application scenario: For food/pharmaceuticals → choose food-grade silica gel; for sea freight/industrial goods → choose calcium chloride or clay desiccant.

2. Calculate the required dosage: Based on package volume, product moisture sensitivity, and storage time. For example, 1-2g of silica gel desiccant per 100ml of sealed space for small electronic products.

3. Consider special requirements: For high-temperature environments → choose molecular sieve; for cost control → choose clay desiccant.

• Silica gel and molecular sieve desiccants: Yes. They can be regenerated by heating (silica gel: 100–120℃; molecular sieve: 200–300℃) to evaporate absorbed moisture.

• Clay and calcium chloride desiccants: No. They are one-time use products, as their structure is damaged after moisture absorption and cannot be regenerated.

1. Place the desiccant close to the product inside the sealed package.

2. Ensure the package is airtight (e.g., using vacuum bags, aluminum foil bags) to prevent external moisture from entering.

3. Put the desiccant into the package immediately after opening its original packaging to avoid pre-absorption of air moisture.

4. Do not overstack products in the package, leaving space for air circulation to improve moisture absorption efficiency.

• Food-grade silica gel desiccant: Non-toxic, chemically inert. If accidentally eaten, it will not be absorbed by the human body and can be excreted naturally.

• Calcium chloride desiccant: Irritating. If eaten by mistake, it may cause gastrointestinal discomfort, and medical attention should be sought immediately.

• Industrial-grade desiccants: May contain impurities, and are strictly prohibited from contact with food or accidental ingestion.

Note: All desiccants should be marked with "DO NOT EAT" on the packaging.

Unused desiccants should be stored in sealed containers (e.g., plastic buckets with lids) in a dry, cool, and ventilated warehouse. Avoid contact with water or humid air to prevent premature moisture absorption and failure.

Yes. Professional desiccant manufacturers can provide customized services:

• Specifications: Customize weight (1g, 5g, 100g, etc.) and shape (sachet, strip, block).

• Packaging: Customize printing (logo, warning text, certification marks) and packaging materials (food-grade, anti-static).

• Functions: Customize special desiccants for specific industries (e.g., anti-corrosion desiccants for electronics, mold-proof desiccants for leather goods).

Possible reasons and solutions:

1. Package not sealed tightly: Check and replace with airtight packaging materials.

2. Insufficient dosage: Increase the number of desiccants according to the package volume.

Desiccant expired or pre-absorbed moisture: Replace with new desiccants and ensure proper storage of unused products.