Bucher Vaslin Flavy ML Reverse Osmosis Unit

Master Your Vintage: The Ultimate Must and Wine Correction System for ANZ Winemakers

Unpredictable vintage conditions, extreme weather events, and changing market trends present significant challenges to winemakers across Australia and New Zealand. The Bucher Vaslin Flavy ML Reverse Osmosis Unit delivers a physical membrane process to safely adjust, correct, and optimise your musts and wines. This system helps protect your vintage from climatic hazards and technological accidents, while ensuring your final profile aligns precisely with market demands.

How the Flavy ML handles weather extremes & vintage irregularities:

Late-season rainfall can dilute your grapes right at harvest. This lowers sugar concentration, weakens natural structures, and leaves your must waterlogged. The Flavy ML safely extracts pure water (permeate) under pressure to reverse rain dilution. It concentrates grape must to restore structural balance and boosts wine intensity without altering the natural varietal profile.

Unusually hot growing seasons lead to rapidly rising sugar levels. High sugar levels result in excessively high potential alcohol, which can lead to sluggish or stuck fermentations. Lower your must's sugar content prior to fermentation to ensure a smoother, more predictable yeast lifecycle. If dealing with finished wine, use the partial dealcoholisation process to adjust the final alcohol level down by several degrees.

Contamination from Brettanomyces can spoil a batch by introducing volatile ethyl phenols. When combined with the optional Flavy EP Kit, the unit isolates and reduces ethyl phenols down below the sensory perception threshold. This removes faulty barnyard odours while preserving the wine's intrinsic structure, colour, and fruitiness.

Standard reverse osmosis units on the market struggle with turbidity. They typically require pristine input liquids between 5 to 20 NTU, leading to rapid clogging and regular operational disruptions. Equipped with highly resilient membranes, the Flavy ML handles input products with turbidity levels up to 400 NTU. This delivers unmatched throughput compared to alternative systems that fail above 20 NTU.

Key Technical Features

• Scalable Modular Design: Available in configurations from 2 to 12 modules. Upgrade your capacity seamlessly over time by adding modules directly to the existing frame.
• Autonomous PLC Control: The onboard PLC automatically tracks key data like extracted volume while monitoring pressure, temperature, and flow rate safety devices.
• Targeted Membrane Selection: Choose between two specific membrane classes - "X" or "O" type membranes - to achieve the precise level of selectivity your cellar requires.
• Low Maintenance: Built with safety indicators that allow the machine to run safely and independently without constant manual operator oversight.

Applications

• Concentration of grape must (ideal after rain-diluted harvests)
• Reduction of sugar in must (Redux process)
• Wine concentration (enhances intensity and structure)
• Reduction of volatile acidity
• Reduction of ethyl phenols (with Flavy EP kit)
• Partial dealcoholisation of wine (adjust alcohol by 1–3 degrees)

Available Configurations & Options

• EP Kit: Coupled filtration extension explicitly engineered for volatile ethyl phenol reduction.
• Sweet Wine Flow Controller: Specialised adjustment kit for optimising sweet wine production lines.
• Membrane Upgrade Packs: Kit 2 tubes / 2 Membranes X or O options

Bucher Vaslin equipment is made to order, contact our sales team via the enquire button below.