We comply with the development of the market, close to the international trend, committed to providing customers with satisfactory Industrial Dessicant Packs, Food Storage Zipper Lock Bag, large seal bags. We have created a good enterprise environment and we take the brand-new management mode, the perfect technology, the thoughtful service and the high quality quality as the survival foundation. What our company pursues is higher and more stable quality, more comprehensive and professional services, and faster response. We fully consider the urgent needs of many customers for products, and maintain a stable inventory for a long time, which can meet most customer demands at the first time. We pursue a quality policy of meticulous craftsmanship and the pursuit of perfection, and implement the business strategy of continuous improvement and market expansion.
This food desiccant is a high-performance moisture absorber designed to protect food products from humidity, mold, and spoilage. Made from food-safe absorbing materials, it effectively extends shelf life by maintaining a dry environment inside packaging.
Key Features
1. Superior Moisture Absorption
Utilize high-efficiency absorbents (silica gel, clay, or calcium oxide), to quickly eliminate excess moisture.
2. Food-Safe & Non-Toxic
This food desiccant is compliant with FDA, EU standards, etc. Free from harmful chemicals.
3. Extend Shelf Life
Prevent mold, bacteria growth, and oxidation. Keep food fresh for longer.
4. Multiple Packaging Options
Available in small packets (1g, 2g, 5g, etc.), canisters, or bulk form, to fit various packaging needs.
5. Eco-Friendly Solutions
The silica gel desiccant is reusable, while clay is biodegradable for sustainable use.
Performance Comparison
Feature | Silica Gel Desiccant | Clay Food Desiccant | Calcium Oxide Desiccant |
Main Composition | Silicon Dioxide (SiO₂) | Montmorillonite Clay | Calcium Oxide |
Moisture Absorption | 20%-30% (at 25°C, 90% RH) | 15%-20% (at 25°C, 90% RH) | 30%-35% (at 25°C, 90% RH, chemical reaction) |
Absorption Speed | Fast | Moderate | Very fast (exothermic reaction with water) |
Reusable ? | Yes (It can be regenerated by heating) | No | No |
Safety | Non-toxic, food-safe, low ingestion risk | Non-toxic, food-safe, low ingestion risk | Strong alkali, harmful if ingested (cause burns) |
Temperature Range | -40°C to 200°C | -40°C to 80°C | -40°C to 100°C (high heat accelerates reaction) |
pH Level | Neutral (pH≈7) | Neutral (pH≈7) | Highly Alkaline (pH≈12-14) |
Eco-Friendliness | Recyclable/partially degradable | Natural mineral, biodegradable | Non-degradable (form calcium hydroxide) |
Cost | Moderate | Low | High |
Post-Absorption State | Beads turn transparent/clump. | Harden | Turn into powder (heat-releasing reaction) |
Key Recommendations
Silica Gel – Best for general food use, reusable, stable absorption.
Clay Food Desiccant – Cost-effective, eco-friendly, ideal for low-to-medium humidity.
Calcium Oxide – Highest absorption, suited for wet environments, but it requires safety precautions.
Applications
Desiccant Type | Food Category | Typical Applications |
Silica Gel | Snacks | Potato chips, crackers, puffed snacks,etc. |
Baking Ingredients | Flour, milk powder, sugar, yeast,etc. | |
Beverage Materials | Tea leaves, coffee beans, dried flowers,etc. | |
Pharmaceuticals | Tablets, capsules, powdered medicines,etc. | |
Clay Desiccant | Nuts & Seeds | Peanuts, almonds, sunflower seeds,etc. |
Dried Fruits/Veggies | Raisins, dried mango, shiitake mushrooms,etc. | |
Grains | Rice, red beans, oats,etc. | |
Pet Food | Dry kibble, freeze-dried treats,etc. | |
Calcium Oxide | High-Moisture Seafood | Dried scallops, shrimp, seaweed,etc. |
Cured Foods | Bacon, sausages, salted fish,etc. | |
Emergency Food | Military biscuits, survival rations,etc. |
How to Use
Select the appropriate desiccant size based on package volume.
Place the desiccant packet inside the food container or packaging.
Seal the package tightly for optimal moisture control.
Label "Do Not Eat" on external packaging for safety.
Notes
The food desiccant needs to be sealed and stored correctly. Use as soon as possible after opening.
Keep away from children and pets to prevent accidental ingestion.
If the packaging is damaged, do not touch the contents to avoid direct inhalation or accidental ingestion.
About Us
Foshan Weller Moisture-Proof Technology Co., Ltd. was established in 2009. We are a professional manufacturer and supplier in China, with an factory of over 8,000 square meters.
Product Range | moisture-proof, mildew-proof, odor-proof and rust-proof products. |
Applications | designed for residential, commercial and industrial use. used for product packaging, transportation, and warehousing in different industries. |
Service | Accept wholesale, OEM, ODM orders; Provide custom solutions. |
Certifications | SGS, RoHS, REACH, FDA, DMF; SIMT,MIL-D-3464E, DIN55473, ISO9001, ISO14001, BSCI. |
Product Details and Summary
Product Type | silica gel desiccant (moisture absorbing material) |
Classification | 1. non-indicating silica gel 2. indicating silica gel (1) blue indicating silica gel (blue to pink; containing cobalt chloride) (2) orange indicating silica gel (orange to green; cobalt free and environmentally friendly) |
Indicator Function | You can choose silica gel with color indication function, to achieve a more convenient reminder function. |
Main Components | silicon dioxide (SiO₂); Content ≥ 98% |
Appearance | granular, spherical, powdered, beads crystals, sand, etc. |
Colors | transparent, translucent, white, blue, or orange |
Particle Size | 1-3mm, 2-4mm, 3-5mm; or custom sizes |
Bulk Density | approximately 700-800 kg/m³ |
Surface Area | 700-800 m²/g |
Pore Volume | 0.4-0.8 cm³/g |
Applicable Humidity Level | 20%-90% RH |
Operating Temperature Range | -40 ℃ to 200 ℃ (long-term stability) |
Maximum Moisture Absorption Rate | 30%-40% of its own weight |
Physical Properties | stable internal structure. no expansion or liquefaction. not easily crushed. dust-free. |
pH | 4-8 |
Chemical Properties | chemically inert; It will not chemically react with the inside products. |
Human-Friendly Feature | odorless and non-toxic. It meets food grade standards. |
Environmentally Friendly Feature | using packaging paper and materials that are biodegradable within two years. It can be discarded for use as fertilizer. |
Regeneration Temperature | 80℃-150 ℃ ( It can be reused after heating for 2-4 hours.) |
Packaging Material | breathable material with strong sealing properties. You can customize packaging materials according to your needs. |
Printing | You can custom printed text, pictures, logo for better brand images. |
Packaging Capacity | 1g, 2g, 5g, 10g, 50g, 100g, 500g, 1000g; or custom capacity |
Storage | It should be tightly sealed and stored in a cool, dry place; away from direct sunlight and chemical pollution. |
| Certifications | SGS, RoHS, REACH, FDA, DMF; SIMT,MIL-D-3464E, DIN55473, ISO9001, ISO14001, BSCI. |
We will continue to improve the company's management level and business quality, to provide our customers with more complete service and quality DMF-Free Desiccant Silica Gel in Avoiding Clumping of Food Products and Powders. Based on the knowledge and experience in multiple fields, we also provide customized solutions tailored to customers' individual needs and applications. In recent years, enterprises are accelerating the role transformation to international enterprise groups and our company has introduced high-tech and equipment.