Winded PP Winded Filter Cartridge for Deposition Removal in Fruit Wine and Rice Wine Fermentation Liquids
Product Introduction
This winded PP filter cartridge is a professional food-grade filtration component engineered exclusively for deposition removal in fruit wine and rice wine fermentation liquids, tailored to the unique filtration demands of alcoholic fermentation broths—including high viscosity, complex composition, and the need to retain flavor and active substances while removing insoluble deposits. Crafted from food-grade food-contact polypropylene (PP) raw materials complying with FDA, EU 10/2011, and national food safety standards for alcoholic beverages, the cartridge adopts advanced multi-layer spiral winding technology with a reinforced porous PP inner core and a gradient-density PP wire filter layer. It is dedicated to the efficient removal of insoluble deposits in fruit wine (grape wine, peach wine, hawthorn wine) and rice wine (yellow rice wine, glutinous rice wine) fermentation liquids, including yeast cell residues, fruit pulp sediment, rice husk debris, colloidal flocs, and protein-polysaccharide aggregates generated during fermentation and aging. The filtration process achieves pure physical deposition removal without chemical additives, no dissolution of harmful substances, no adsorption of alcohol, organic acids, or natural flavor substances, and no alteration to the fermentation liquid’s alcohol content, acidity, or original taste—core characteristics for preserving the flavor and quality of fruit wine and rice wine. With excellent compatibility with food-grade filter housings for beverage production, stable deposition removal performance, and adaptability to the variable viscosity of fermentation liquids (from primary fermentation to post-aging), this cartridge is a core filtration component for wineries, rice wine breweries, and fruit wine processing enterprises. It complies with the strict quality and safety control requirements of the alcoholic beverage industry, effectively reduces the sediment content of fermentation liquids, improves the clarity of finished wine, and lays a solid foundation for subsequent filtration, aging, and bottling processes of fruit wine and rice wine.
Filtration Precision
Calibrated specifically for the deposit characteristics of fruit wine and rice wine fermentation liquids (diverse particle sizes, easy agglomeration) and the differentiated filtration needs of different fermentation stages (primary fermentation, post-fermentation, aging), the filtration precision of this winded PP filter cartridge covers a food industry standard range of 1 μm to 40 μm, with the most practical and commonly used specifications for wine production being 5 μm, 10 μm, 20 μm and 30 μm. The 5 μm and 10 μm high-precision specifications are used for the fine deposition removal of late-stage fermentation liquids and aging broths (e.g., mature fruit wine, aged rice wine), effectively intercepting fine yeast cell residues, micro colloidal flocs, and tiny pulp sediment that cause wine turbidity and post-bottling sedimentation, ensuring the fermentation liquid reaches the clarity required for subsequent fine filtration and bottling. The 20 μm and 30 μm medium-precision specifications are applied to the rough deposition removal of primary and mid-stage fermentation liquids (e.g., newly fermented grape juice, unaged rice wine), removing large rice husk debris, bulk fruit pulp sediment, and agglomerated yeast residues, reducing the deposit load of subsequent fine filtration links, protecting high-precision filtration equipment, and extending its service cycle. All precision grades adopt food-grade gradient gap-calibrated winding technology with a multi-layer filter structure, realizing graded interception of deposits of different particle sizes, stable filtration efficiency without precision attenuation, channeling, or filter layer blockage during continuous industrial production. They fully meet the differentiated deposition removal needs of fruit wine and rice wine in all fermentation and aging stages, and strictly comply with the national quality standards for fruit wine (GB/T 15038) and rice wine (GB/T 13662).
Flux
The flux performance of this winded PP filter cartridge is fully optimized for the physical properties of fruit wine and rice wine fermentation liquids (moderate to high viscosity, containing suspended solids), the deposition removal demand of different fermentation stages, and the continuous production characteristics of wineries and rice wine breweries. Under the standard operating conditions of 20-25℃ (optimal temperature for wine filtration) and 0.2MPa inlet pressure, the initial pure water flux of a single cartridge reaches 8-35 L/min; for actual fermentation liquids with different viscosities and deposit contents, the stable operating flux is adaptively adjusted to match production needs: for low-viscosity late-stage fermentation liquids/aging broths (viscosity <15 mPa·s) with low deposit content, the stable flux is 6-30 L/min per cartridge (5 μm/10 μm specifications); for high-viscosity primary fermentation liquids (viscosity 15-30 mPa·s) with high deposit content, the stable flux is 4-20 L/min per cartridge (20 μm/30 μm specifications), unaffected by the alcohol content (5-20 vol%) and organic acid composition of the fermentation liquid. The gradient-density filter layer and multi-layer winding structure effectively delay flux attenuation during continuous filtration, and the flux remains stable in the middle and early stages of use. Even with the gradual accumulation of insoluble deposits, there is no sudden drop in flux, avoiding the reduction of production efficiency of fruit wine and rice wine fermentation lines caused by excessive flux attenuation. In addition, the flux design fully considers the parallel use characteristics in medium-to-large flow wine filtration systems—multiple cartridges can be used in parallel in food-grade filter housing skids without mutual interference, which can flexibly expand the total filtration flow to meet the mass production needs of large-scale wineries and rice wine breweries.
Salt Rejection Rate
As a food-grade physical deposition removal component for fruit wine and rice wine fermentation liquids based on the pore size interception principle, this winded PP filter cartridge is designed to remove insoluble solid deposits in fermentation broths, and its core design concept is to retain all soluble flavor, nutritional and functional substances (alcohol, organic acids, sugars, amino acids, polyphenols) that determine the quality of fruit wine and rice wine. Therefore, its salt rejection rate is 0% under all normal wine production operating conditions. It only intercepts yeast cell residues, fruit pulp sediment, rice husk debris and other insoluble contaminants in fermentation liquids during deposition removal, and will not retain any soluble components in the broth, including inorganic salt ions (potassium, sodium, calcium), soluble sugars, organic acids (tartaric acid, lactic acid, acetic acid), amino acids, and natural polyphenol flavor substances that form the taste and aroma of wine. This 0% salt rejection rate is a core performance characteristic of the cartridge for wine production: it strictly ensures that the soluble chemical composition, alcohol content, acidity, sugar content and flavor substance ratio of fruit wine and rice wine fermentation liquids remain completely unchanged after filtration, complying with the core quality requirements of the wine industry for “retaining original flavor while removing deposits”, and avoiding the loss of soluble flavor and active substances that are the core of wine quality. At the same time, the 0% salt rejection rate makes the cartridge not affected by the total dissolved solids (TDS) content and inorganic salt composition of fermentation liquids, and can be universally applied to the deposition removal of various fruit wine and rice wine fermentation broths with different raw material sources and fermentation processes.
Pressure Drop
The pressure drop design of this winded PP filter cartridge is fully optimized for the gradient-density filter structure, the rated working pressure of food-grade filter housings for wine production, the low-energy production requirements of the alcoholic beverage industry, and the normal filtration pressure of wine fermentation lines (0.15-0.3MPa). It is designed to ensure safe, stable and low-consumption deposition removal operation, without bringing additional pressure load to the liquid delivery pump, filter housing system and subsequent wine processing equipment of fruit wine and rice wine production lines. Under the standard operating condition of 25℃ and initial operation state (no deposit accumulation), the initial pressure drop of a single cartridge is strictly controlled within 0.01-0.04 MPa for 5 μm/10 μm high-precision specifications and 0.008-0.02 MPa for 20 μm/30 μm medium-precision specifications—both far lower than the rated pressure loss of mainstream food-grade filter housings for wine production and fermentation liquid filtration systems. This ultra-low initial pressure drop ensures that the wine filtration system can operate under normal production pressure without an additional high-pressure booster pump, effectively reducing the energy consumption of the deposition removal link, and avoiding the emulsification of fermentation liquids and loss of volatile flavor substances caused by excessive pressure, which is in line with the energy-saving and emission-reduction requirements of modern wineries and rice wine breweries. With the progress of continuous filtration and the gradual accumulation of insoluble deposits in the gradient-density filter layer, the pressure drop of the cartridge will increase steadily. The recommended maximum allowable pressure drop for wine fermentation liquid filtration is 0.22 MPa, which is the critical pressure value for the filter housing system to maintain safe and stable operation, avoid liquid leakage and ensure the normal progress of subsequent wine processing links (fine filtration, aging, bottling). When the pressure drop reaches this value, the cartridge needs to be replaced in a timely manner, which not only ensures the deposition removal effect of fruit wine and rice wine fermentation liquids, but also prevents the production line from being shut down due to excessive system pressure and affecting the continuous production of wine.
Molecular Weight Cutoff (MWCO)
Combined with the filtration precision range (1 μm-40 μm), food-grade safety design, gradient-density filter structure and actual deposition removal demand of fruit wine and rice wine fermentation liquids, the molecular weight cutoff (MWCO) of this filter cartridge is set at 20,000 – 500,000 Da, and the MWCO grade is precisely matched with the filtration precision and multi-layer filter structure to realize targeted interception of macromolecular insoluble deposits in fermentation broths without intercepting small molecular weight soluble flavor, alcohol and organic acid substances. The 5 μm high-precision cartridge with MWCO of 20,000 – 100,000 Da is used for the fine deposition removal of aged fruit wine and high-grade rice wine fermentation liquids, effectively intercepting macromolecular colloidal flocs, protein-polysaccharide aggregates and fine yeast cell residue fragments in the broth, ensuring the high clarity of the fermentation liquid and avoiding post-bottling sedimentation during wine storage. The 10 μm cartridge with MWCO of 100,000 – 200,000 Da is applied to the fine filtration of conventional fruit wine and rice wine late-stage fermentation liquids, removing micro suspended deposits and small agglomerated yeast residues to meet the basic clarity requirements of wine processing. The 20 μm cartridge with MWCO of 200,000 – 350,000 Da and 30 μm cartridge with MWCO of 350,000 – 500,000 Da are used for the rough deposition removal of primary and mid-stage fermentation liquids, efficiently removing large molecular weight insoluble contaminants such as bulk fruit pulp sediment, rice husk debris, and agglomerated yeast cell clusters. This graded MWCO design combined with multi-layer gradient filtration not only ensures the efficient and thorough removal of harmful insoluble deposits in fruit wine and rice wine fermentation liquids during filtration, but also allows all small molecular weight soluble components (alcohol molecules, organic acids, soluble sugars, amino acids, small molecular polyphenols) to pass through the filter layer smoothly, maximizing the retention of the original flavor, taste and nutritional characteristics of the fermentation liquid. At the same time, the food-grade PP raw material and high-precision spiral winding process ensure that the MWCO parameters remain stable without attenuation during the service cycle, even under long-term immersion in alcohol-containing fermentation liquids, ensuring the consistent and stable deposition removal effect of the fruit wine and rice wine production line.
Membrane Thickness
Aiming at the deposition removal demand of fruit wine and rice wine fermentation liquids, the gradient-density filter structure design, food safety requirements of the alcoholic beverage industry and the continuous industrial filtration characteristics, the filter layer (wound food-grade PP wire layer) thickness of this winded PP filter cartridge is specially designed as 4-12 mm with graded specifications based on filtration precision, and the total wall thickness of the cartridge (including reinforced porous food-grade PP inner core, gradient-density filter layer and food-grade smooth alcohol-resistant outer protective layer) is 9-19 mm. The dimensional design fully complies with the standard filter cartridge specifications of the beverage and wine industry, ensuring perfect installation compatibility with all mainstream 10/20/40-inch food-grade filter housings (304/316L stainless steel) for fruit wine and rice wine production lines. The thin filter layer (4-6 mm) is matched with the 5 μm/10 μm high-precision cartridges for fine deposition removal of late-stage fermentation liquids and aging broths, adopting a dense gradient-density structure to ensure high filtration precision and excellent liquid permeability under normal operating conditions, avoiding excessive flow resistance caused by overly thick filter layer and affecting the filtration efficiency of high-clarity wine processing, while also preventing unnecessary adsorption of volatile flavor substances. The medium and thickened filter layers (8-12 mm) are applied to the 20 μm/30 μm medium-precision cartridges for rough deposition removal of primary fermentation liquids, with a relatively loose gradient-density structure that provides a larger three-dimensional dirt-holding space, realizes graded interception of large and small deposits in high-viscosity fermentation liquids, delays filter layer blockage, extends the service cycle of the cartridge and reduces the replacement frequency under rough filtration conditions. The reinforced porous PP inner core with optimized thickness (3-5 mm) is made of food-grade PP material, with high compressive strength, uniform liquid permeability and excellent alcohol resistance, which provides a stable and non-deformable supporting structure for the outer gradient-density filter layer under the working pressure of the filter housing system, avoiding the deformation or collapse of the inner core caused by the hydraulic impact of fermentation liquid delivery and ensuring the overall structural stability of the cartridge. The food-grade smooth alcohol-resistant outer protective layer (0.5-0.9 mm) is made of modified food-grade PP material, with excellent alcohol resistance and corrosion resistance to organic acids, effectively preventing the filter layer from being eroded and damaged by alcohol-containing fermentation liquids during continuous production, avoiding the shedding of PP wire particles to ensure the safety of fruit wine and rice wine, and the smooth surface is easy to clean and sanitize before use, complying with the strict hygiene control norms of the alcoholic beverage industry.
Replacement Cycle
The replacement cycle of this winded PP filter cartridge is determined according to the filtration precision specification, the fermentation stage of fruit wine/rice wine (primary/late/aging), the deposit content of fermentation liquid, and the continuous production load of the wine production line, with strict compliance with the alcoholic beverage industry’s food safety and quality control norms and strong on-site operability for wineries and rice wine breweries. Under the conventional working condition (20-25℃, continuous filtration for 8-16 hours a day, fermentation liquid deposit content <5 g/L, matching the rated flow of food-grade filter housings), the recommended replacement cycle for a single cartridge is strictly differentiated by filtration precision and application stage: for the 5 μm/10 μm high-precision cartridges (fine deposition removal for late-stage/aging broths), the replacement cycle is 4-7 days due to the dense filter structure and continuous interception of fine deposits, which is the core guarantee for the clarity of finished wine and the prevention of post-bottling sedimentation; for the **20 μm/3 20 μm/30 μm medium-precision cartridges (rough deposition removal for primary/mid-stage fermentation liquids), the replacement cycle is 7-12 days with larger dirt-holding capacity and gradient deposit interception design, effectively reducing the deposit load of the subsequent fine filtration link. If the deposit content of the fermentation liquid is higher than 5 g/L (e.g., newly pressed fruit wine pulp, unfiltered primary rice wine fermentation liquid), or the wine production line is in 24-hour continuous full-load production, the replacement cycle of all specifications of cartridges will be uniformly shortened by 30%-40%—3-5 days for high-precision cartridges and 5-8 days for medium-precision cartridges. The high deposit content and continuous full-load production will accelerate the accumulation of insoluble deposits in the filter layer, and timely replacement can avoid the reduction of deposition removal effect, the turbidity of fermentation liquids, the clogging of filter housings and subsequent processing equipment, and the risk of microbial breeding caused by long-term use of the cartridge in fermentation liquid-soaked conditions, which is in strict compliance with the national quality standards for fruit wine and rice wine and food safety control requirements of the alcoholic beverage industry. In addition, the replacement cycle must be adjusted according to the actual operating parameters of the wine production line’s filtration system: if the pressure drop of the filter housing system reaches the recommended maximum value of 0.22 MPa in advance, or the filtered fermentation liquid has obvious turbidity or visible deposits, the cartridge should be replaced immediately regardless of the operating time, to ensure the consistent deposition removal quality of fruit wine and rice wine fermentation liquids and the normal continuous production of the wine production line.
Features
- Specialized deposition removal for wine fermentation liquids: Tailored for fruit wine and rice wine fermentation broths, with a graded filtration precision of 1 μm-40 μm covering all fermentation stages, realizing efficient removal of yeast residues, pulp sediment and other insoluble deposits, and ensuring the clarity of fermentation liquids for subsequent processing.
- 0% salt rejection rate for flavor retention: Core performance design of 0% salt rejection rate, only removing insoluble deposits without retaining any soluble flavor substances, alcohol, organic acids or inorganic salts, strictly maintaining the original chemical composition, taste and aroma of fruit wine and rice wine fermentation liquids.
- Food-grade alcohol-resistant raw material compliance: The whole cartridge is made of food-grade alcohol and organic acid-resistant PP raw materials complying with FDA, EU 10/2011, GB/T 15038 and GB/T 13662, non-toxic, tasteless, no dissolution or adsorption of harmful substances, no secondary pollution to fermentation liquids, fully meeting the strict food safety requirements of the alcoholic beverage industry.
- Gradient-density filter structure for stable flux: Advanced multi-layer gradient-density spiral winding technology, realizing graded interception of deposits of different particle sizes, with high dirt-holding capacity and slow flux attenuation, effectively avoiding sudden filter blockage and matching the continuous production demand of wine lines.
- Universal compatibility with wine industry filter housings: Dimensional design complies with the standard filter cartridge specifications of the beverage and wine industry, perfectly compatible with all mainstream 10/20/40-inch 304/316L stainless steel food-grade filter housings, supporting parallel use to expand filtration flow for mass production.
- Reinforced structural stability for fermentation liquids: Reinforced porous PP inner core with high compressive strength and modified alcohol-resistant outer protective layer, able to withstand the hydraulic impact of fermentation liquid delivery and resist erosion by alcohol and organic acids, no deformation or filter layer shedding, ensuring long-term stable operation under industrial production conditions.
- Ultra-low initial pressure drop for energy saving & flavor protection: Optimized pressure drop design with ultra-low initial pressure drop (0.008-0.04 MPa), no additional high-pressure booster pump required, reducing energy consumption and avoiding the loss of volatile flavor substances caused by excessive filtration pressure.
- Hygienic structural design for wine production: Integrated injection molding food-grade end cover with excellent sealing performance, smooth alcohol-resistant outer surface without dead angles, easy to clean, sanitize and sterilize before use, complying with the strict hygiene control norms of the alcoholic beverage industry.
- Wide adaptability to wine fermentation liquids: Stable deposition removal performance for various fruit wine and rice wine fermentation liquids with different alcohol contents (5-20 vol%), viscosities and raw material sources (grape, peach, glutinous rice), adapting to the quality changes of fermentation liquids in different stages, with strong on-site adaptability.
- Cost-effective filtration solution for wineries: Mature spiral winding production process, stable product quality, reasonable price, and the comprehensive use cost is far lower than other food-grade filtration components of the same performance in the market, effectively reducing the deposition removal cost of fruit wine and rice wine production lines.
Application Fields
This winded PP filter cartridge is a specialized food-grade filtration component exclusively developed for deposition removal in fruit wine and rice wine fermentation liquids, and its core application field covers the whole process of deposit removal and clarity improvement of various fruit wine and rice wine fermentation broths in the alcoholic beverage industry, including but not limited to: the rough deposition removal of primary and mid-stage fermentation liquids of fruit wines (grape wine, peach wine, hawthorn wine, blueberry wine), removing bulk pulp sediment and agglomerated yeast residues; the fine deposition removal of late-stage fermentation liquids and aging broths of high-grade fruit wines, ensuring the high clarity required for bottling and preventing post-storage sedimentation; the rough filtration of primary fermentation liquids of rice wines (yellow rice wine, glutinous rice wine, sweet rice wine), removing rice husk debris, rice residue and large yeast cell clusters; the fine deposition removal of aged rice wines and low-alcohol rice wine products, improving the visual clarity and sensory quality of finished rice wine; the pre-filtration of fruit wine and rice wine before fine filtration (e.g., membrane filtration, diatomite filtration), reducing the deposit load of high-precision fine filtration equipment and extending its service life. In addition, with its excellent food-grade safety, alcohol resistance and deposition removal performance, the cartridge can also be widely applied to the filtration and impurity removal of other fermented alcoholic beverages in the food and beverage industry, such as fruit vinegar fermentation liquids (pre-alcoholic fermentation stage), sweet wine fermentation broths, and low-alcohol fruit wine coolers, complying with the strict quality and safety norms of the fermented beverage industry.
Conclusion
In summary, this winded PP filter cartridge is a highly targeted, food-safe and high-performance filtration product developed for the specialized deposition removal demand of fruit wine and rice wine fermentation liquids, and a customized filtration solution for the modern alcoholic beverage industry’s pursuit of high wine quality, flavor retention and continuous industrial production. It perfectly combines the advantages of specialized deposition removal performance, 0% salt rejection rate for flavor retention, food-grade alcohol-resistant raw material compliance, gradient-density filter structure for stable flux and universal filter housing compatibility, solving the industry pain points of traditional filtration components with poor alcohol resistance, easy adsorption of flavor substances, fast flux attenuation, and failure to balance deposit removal and flavor retention for wine fermentation liquids. Its core 0% salt rejection rate design strictly adheres to the quality requirements of the wine industry for “retaining original flavor while removing deposits”, ensuring that the soluble chemical composition, alcohol content, acidity and flavor substance ratio of fruit wine and rice wine fermentation liquids remain completely unchanged after filtration—this is the core value of the cartridge for wine production, as it preserves the unique flavor and taste that distinguish different fruit wines and rice wines. Its graded filtration precision (1 μm-40 μm) and gradient-density filter structure realize thorough and graded removal of insoluble deposits in fermentation liquids of all stages, effectively reducing the sediment content of broths, improving the clarity of finished wine, and preventing post-bottling sedimentation during storage, which meets the national quality standards for fruit wine and rice wine and consumer sensory expectations for clear wine products. The ultra-low initial pressure drop and stable flux performance adapt to the continuous production characteristics of wineries and rice wine breweries, effectively reducing the energy consumption of the deposition removal link, and the universal filter housing compatibility supports parallel use to meet the mass production demand of large-scale wine lines. The food-grade alcohol-resistant raw materials and hygienic structural design completely eliminate the risk of secondary pollution to fermentation liquids, complying with the strict food safety and hygiene control requirements of the alcoholic beverage industry. The reinforced structural stability and alcohol resistance ensure long-term stable operation under the erosion of alcohol and organic acids, avoiding filter layer deformation and particle shedding, and ensuring the consistent deposition removal quality of the wine production line. With the advantages of wide adaptability to different fermentation liquids, cost-effectiveness and easy installation and replacement, this cartridge effectively improves the production efficiency and product quality of fruit wine and rice wine production lines, reduces the operation and maintenance cost of filtration equipment, and meets the production needs of wineries and rice wine breweries with different raw material sources and production scales. As an indispensable core filtration component for the fruit wine and rice wine industry, this product adapts to the development trend of the alcoholic beverage industry towards high quality, refinement and natural flavor retention, and its excellent specialized deposition removal performance, core flavor retention characteristic, strict food safety compliance and perfect adaptability to wine production lines make it have a wide and stable application prospect in the global fermented alcoholic beverage industry. With the continuous improvement of national food safety standards and consumer demand for high-quality, natural-flavor fruit wine and rice wine products, the market demand for such high-quality specialized filter cartridges for wine fermentation liquids will continue to increase, and it will become the first choice for wineries, rice wine breweries and fruit wine processing enterprises in the deposition removal and clarity improvement link of fruit wine and rice wine fermentation liquids.
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