The Challenge: The dilemma between shelf life and product quality
In the Food & Beverage industry (from dairy and juices to breweries), producers face a constant challenge: how do you guarantee maximum microbiological safety and shelf life without compromising the premium flavor profile?
Traditionally, many producers rely on thermal processes such as (flash) pasteurization. While highly effective at killing spoilage microorganisms, heat comes with a significant downside. It breaks down proteins and vitamins, evaporates volatile aromas, and often causes flavor degradation or a 'cooked' off-flavor in products like milk or fruit juices. In a market where consumers increasingly demand 'fresh,' 'pure,' and 'craft' products (consider the rise of premium 0.0% non-alcoholic beers), heat treatment is often no longer the optimal choice.
Read more about our solutions for the Food & Beverage industry.
The Scientific Solution: Cold Membrane Filtration
Instead of thermally destroying microorganisms, a growing number of high-end F&B producers are opting for cold filtration (cold pasteurization). In this process, a carefully selected membrane filter acts as a physical barrier.
Studies and industry publications show that optimized membrane filtration achieves the exact same microbiological Log Reduction Value (LRV) as thermal pasteurization. The crucial difference? Because no heat is involved, the 100% original product integrity, color, enzymes, and flavor profile is fully preserved.
However, a standard filter won't suffice. The selection of the filter media, pore size, and filtration area must be accurately calculated based on specific fluid dynamics.
Validation & The Filtra Approach: Test before you invest
At Filtra International, we understand that modifying a process line involves risks. A theoretical calculation isn't enough; it has to work in practice. For instance, we know from experience that a simple disc filter test on beer will clog almost immediately due to the complex composition of proteins and yeast. A membrane or pleated cartridge with the right pre-filtration is essential in those cases.
That is why we use a phased, engineering-based testing approach. You don't have to purchase a complete installation right away. We validate the process through:
- In-house Lab Test: You send a product sample to our laboratory. We perform initial filterability tests and determine the optimal media.
- On-site Lab-Scale Test: Using specific test filters, we simulate the filtration process on a small scale at your plant.
- Side-stream Testing: We tap a small portion of your actual production flow to test the filters 'live' for service life and flow rate, without disrupting your main process.
- Full Production Pilot: A temporary test in the actual production line to validate ultimate process reliability.
While there are costs associated with these testing phases, they represent only a fraction of the final CAPEX investment. Moreover, these test costs are (partially) deductible when you decide to purchase the final filtration system from us.
View our range of membrane cartridges and filter housings here.
Key Improvements
By switching to, or optimizing cold filtration with Filtra International, our customers achieve the following results:
- 100% Flavor and Color Retention: No thermal degradation of the final product.
- Maximum Shelf Life: Removal of bacteria and yeast for a safe and long-lasting product.
- Guaranteed Throughput: No unexpected fouling or blocked filters thanks to prior validation in a side-stream or lab test.
- Low Entry Barrier: Risk-free scale-up through our phased testing approach.
Ready to elevate your product quality?
Are you unsure if your current (thermal or filtration) processes are optimal for your product's quality? Let Filtra International audit your process.
👉 Contact us for a process audit or a lab-scale test with your product.