In modern food processing, soybean foods remain one of the most widely consumed plant-protein products. Among them, tofu production places particularly high demands on equipment and materials. During the crucial pressing and forming stage, the performance of industrial filter cloths and filter machine mesh belts—especially polyester filter cloth for food processing—directly determines the texture, moisture level, and structural stability of the final tofu product. Their quality also affects production efficiency, hygiene standards, and product consistency across batches.
The tofu-making process—soybean selection, soaking, grinding, cooking, coagulation, forming, and pressing—has evolved from manual operations to automated production lines. The pressing stage is essential for defining tofu’s firmness, mouthfeel, and moisture content.
Traditional workshops typically rely on manual cloth wrapping and mold pressing, which require intensive labor. Modern food factories, however, increasingly adopt belt filter presses equipped with press filter belts for food pressing, enabling continuous and hygienic forming.
High automation — Reduces manual handling and improves food safety.
Adjustable and uniform pressure — Ensures consistent moisture removal for different tofu types.
High throughput — Ideal for medium to large-scale tofu and soybean product factories.
Clean and reliable operation — Uses food-grade materials with integrated cleaning systems.
In a belt filter press, the filter cloth / mesh belt acts not only as a carrier but also as a filtration medium and forming interface. The performance of materials like polyester filter cloth for food processing, food grade press belts, and monofilament mesh belts directly influences dehydration uniformity and tofu integrity.
The filter cloth must allow rapid drainage while maintaining the shape of the soybean curd. It retains fine particles while guiding excess water out smoothly, laying the foundation for uniform dehydration.
During the pressing cycle, the belt withstands tension, compression, and repeated bending. A high-strength press filter belt for food pressing needs:
Stable tensile strength
Good dimensional stability
Resistance to wrinkling, deviation, or tearing
Because the mesh belt is in direct contact with tofu, it must be:
Food-grade and compliant with contact safety standards
Odorless, non-toxic
Resistant to fiber shedding
Easy to clean and sanitize
| Performance Indicators | Technical Requirements |
|---|---|
| Material Selection | Food-grade polyester filter cloth or monofilament mesh |
| Weaving Structure | Plain or twill weave with stable pore size |
| Filtration Speed | Medium drainage speed for balanced dehydration |
| Surface Treatment | Anti-stick coating or heat-setting for better release |
| Joint Method | Seamless or hot-melt joint to avoid material residues |
| Cleaning Resistance | Withstands high-pressure hot-water and alkaline washing |
These features ensure stable performance in continuous tofu pressing, soybean curd forming, and other food-dehydration processes such as yuba (tofu skin) residue pressing.
The food-grade filter cloths and mesh belts produced by Shijiazhuang Yarns Technology Co., Ltd. have been widely adopted by major tofu and soybean product manufacturers. They are used in:
Automatic tofu production lines
Multi-layer tofu pressing systems
Yuba residue pressing & recycling lines
Continuous dehydration units in food processing plants
More uniform pressing and intact tofu blocks, increasing finished-product yield by 5–10%
Filter cloth lifespan extended by 30%, reducing downtime and replacement cost
Compliant with food contact safety certifications, supporting the export requirements of large brands
Easy to wash, low residue accumulation, and excellent hygiene performance
Choose our polyester filter cloth for food processing and press filter belt for food pressing to achieve cleaner filtration, faster dewatering, and more stable product quality—whether you're producing tofu, fruit juice, plant extracts, or other food products.
Contact us today for samples, custom sizes, and technical support.
Let’s help you build a more reliable and hygienic food production line.
