In the food and beverage industry, microbiological stability is non-negotiable. Whether producing wine, beer, soft drinks, bottled water, or plant-based beverages, the final filtration stage is the last safeguard before packaging. A single microbial breakthrough at this step can compromise entire production batches, damage brand reputation, and increase operational costs.

For producers seeking reliable wine filtration in Australia or a high-performance beer filter in Australia, the BevPure Plus Filter Cartridges, available from CoPure, provide an advanced solution. Featuring a unique double-layer PES (polyethersulfone) membrane, these cartridges deliver both superior microbial retention and long service life. Their economic efficiency and sterilising-grade performance make them a next-generation choice for beverage filtration, ensuring product safety without compromising throughput or cost control.

Why microbiological stability is critical in beverage production

Microbial contamination can have costly implications:

Wine & Beer: spoilage organisms such as Brettanomyces, Lactobacillus, and Pediococcus can alter flavour and aroma, shorten shelf life, and cause gushing or haze.

Juices & Non-alcoholic beverages: yeasts such as Saccharomyces cerevisiae or bacteria like Alicyclobacillus can lead to fermentation, off-flavours, or visible spoilage in sealed containers.

Bottled water & soft drinks: even trace microbial contamination may violate food safety standards and trigger recalls.

Because heat-based sterilisation is not always feasible (due to flavour, aroma, and nutritional compound degradation), sterilising-grade membrane filtration has become the standard industry approach for cold microbiological control. Studies from the beverage sector highlight that 0.2 µm absolute-rated PES membranes consistently achieve >7 log reduction values (LRV) for Brevundimonas diminuta, the FDA reference organism used to validate sterile-grade membranes.

BevPure Plus filters are specifically engineered to meet these requirements while also addressing the economic and operational challenges bottlers face.

BevPure Plus: What makes it different

Unlike single-layer membranes, BevPure Plus features a double-layer PES design:

Asymmetric pre-filter layer

Acts as a protective depth layer.

Captures larger particles and colloids before they reach the final retention surface.

Extends service life and reduces fouling.

Symmetric sterilising-grade PES layer

Provides precise, validated microbial retention.

Ensures compliance with sterilising-grade requirements for beverages.

This layered architecture delivers:

High microbiological safety through redundant retention.

Longer filter life due to dirt-holding capacity.

Lower overall cost per litre filtered, since fewer change-outs are required.

Technical features at a glance

Double-layer PES membrane (asymmetric + symmetric).

Effective filtration area: 0.6 m² per 10” cartridge.

Large surface area provides higher throughput and stable flow rates.

Bubble point: ≥0.34 MPa (49 psi) with air—aligns with integrity test standards.

Diffusion flow: ≤20 mL/min at 2.75 bar—ensures easy pre- and post-use testing.

Materials: Polypropylene support, cage, core, and end caps—chemical resistance and compatibility with sanitisation protocols.

Food contact compliant: FDA 21CFR177-182 and 1935/2004 EC regulations.

Operating conditions for reliable performance

Max operating pressure: 6.9 bar (100 psi) at 25 °C; 2.4 bar (35 psi) at 80 °C.

Max differential pressure (forward): 6.9 bar (100 psi) at 25 °C; 2.4 bar (35 psi) at 80 °C.

Max differential pressure (reverse): 3.0 bar (44 psi) at 25 °C.

Sanitisation and sterilisation tolerance:

Inline steam: 100 cycles for 30 min @ 135 °C (<0.3 bar).

Autoclave: 200 cycles for 30 min @ 130 °C.

Hot water: 50 cycles for 30 min @ 85 °C.

Chemical: 50 cycles for 30 min @ 40 °C with NaClO (100 ppm) + peroxyacetic acid (100 ppm).

Cleaning: Compatible with 2% NaOH at ≤65 °C.

This versatility means BevPure Plus integrates smoothly into diverse beverage facilities—whether steam-in-place (SIP), autoclaving, or chemical sanitation is preferred.

Reliability backed by microbiological control

Sterile filtration standards typically reference >7 log reduction of Brevundimonas diminuta using 0.2 µm membranes. Independent studies show that PES double-layer designs outperform single-layer alternatives by offering both high retention and fouling resistance.

For beverages, this translates into:

Wines & beers: reliable yeast and bacteria removal, especially at bottling.

Juices & functional drinks: protection against spoilage organisms without heat damage.

Bottled water: assurance of clarity and compliance with microbiological safety limits.

Economic and operational advantages

Filtration is not just a technical checkpoint—it’s a major contributor to operating costs. Factors like filter replacement frequency, downtime for sanitisation, and rejected batches add up quickly.

BevPure Plus is designed for cost-efficiency through:

Extended service life — asymmetric pre-filter layer reduces premature clogging.

Fewer filter change-outs — large filtration area enables high throughput.

Repeatable sterilisation cycles — up to 200 autoclave cycles without loss of integrity.

Easy integrity testing — bubble point and diffusion flow values streamline QA compliance.

Over time, this reduces the total cost of ownership (TCO) compared with single-layer membranes, even if the initial cartridge cost is similar.

Integrating BevPure Plus into beverage operations

Wine bottling

Australian and global wineries rely on sterile membranes at bottling, particularly for wines with residual sugar. BevPure Plus assures spoilage organisms like Brettanomyces and lactic acid bacteria while maintaining wine sensory quality.

Beer filtration

In breweries, membranes are often used after kieselguhr or crossflow filtration to achieve sterility before packaging. BevPure Plus ensures microbiological safety while supporting high throughput in modern high-speed lines.

Juices and soft drinks

For juices, iced teas, kombucha, and functional beverages where pasteurisation may damage flavour or bioactives, BevPure Plus offers a cold sterilisation alternative.

Bottled water

Membrane filtration is the standard for ensuring microbiological safety in bottled water. BevPure Plus adds durability and economic efficiency to these high-volume operations.

Best practices for getting the most from BevPure Plus

Pre-filtration: Ensure NTU (turbidity) and filterability index (FI) are within recommended ranges before final filtration—this prolongs membrane life.

Integrity testing: Perform bubble point or diffusion flow tests before and after each run to validate performance.

Documentation: Log cycle counts (steam/autoclave) and cleaning records to track service life.

Matching pore size to risk: Typically, 0.2 µm is used for sterile-grade applications; 0.45 µm may be chosen for yeast-only control in certain beverages.

Why CoPure?

CoPure provides validated, globally compliant filtration solutions tailored for beverage applications. With BevPure Plus, you’re not just buying a filter—you’re investing in:

Microbiological security at the critical control point.

Operational efficiency via longer life and fewer interventions.

Regulatory compliance with FDA and EU food contact standards.

In today’s beverage industry, the balance between microbiological safety, cost-efficiency, and operational flexibility is crucial. BevPure Plus Filter by Copure Cartridges deliver on all three fronts through their double-layer PES membrane design, robust sterilisation tolerance, and high throughput capability.

For wineries, breweries, juice processors, and bottled water plants alike, BevPure Plus represents a dependable, economical choice for safeguarding product integrity right at the point where it matters most: before the cap goes on the bottle.

For Further Enquiry Contact- sales@copure.com.au