Craft distillers have similar objectives as larger producers with regards to the quality of spirit produced and removal of haze. As such, filtration prior to bottling is vital to ensure long shelf life, stability and minimal turbidity.
To this end, the removal of hazes and the precursors to haze formation is particularly important.
Challenges for the Craft Distiller
Larger producers tend to use filter presses which are specifically designed for high capacity and flows in demanding spirit applications and environments and which can incorporate multi-stage filtrations, i.e. coarse to polishing in one pass.
For craft distillers, smaller filter presses can be employed and used in the same way as their larger compatriots and, when used with the same Carlson Filtration XS speciality filter media, can achieve a similar quality of spirit and haze removal as larger presses.
However, due to smaller, in-frequent batches and varied product changes from white to dark, or blend to premium spirits, craft distillers sometimes require a more flexible, easy to use, cost effective filtration system, without compromising product quality.
Solutions for the Craft Distiller
Another option to the filter press and one whose use is growing world-wide in the spirits industry is the lenticular module.
Incorporating exactly the same speciality XS filter media as in the filter press but designed into a module for mounting in a completely sealed simple housing.
Carlson’s range of modules are available in an array of sizes and types to suit the batch size and flowrate required.
12” (1.8m2 per unit) and 16” (3.6m2 per unit) diameter modules, ability to multi stack 1, 2, 3 or 4 modules.
DOE (double open ended) and DOR (double ‘o’ ring) format
Protective scrim used as a pre-filter or to allow back-flushing.
Downstream filter paper for added filtration.
Heavy duty support feet between cells to stop movement.
Extra space design for high solids (barrel char) removal.
Small module design for single cask filtration.
Skid mounted systems, to run in series or parallel and for increased filtration. area
Multi stage systems.
Lifting device for safe removal and quick replacement of spent modules.
Ability to multi stack 1, 2, 3 or 4 modules
Small module design for single cask filtration, is available in 12” diameter with 4 or 5 cells
Lenticular Module Flow Diagram
Benefits for the Craft Distiller
A lenticular filter system is a simple, self-contained, filter housing that can take 1, 2, 3 or 4 lenticular cartridge modules depending on its size. Some of the advantages that this type of filtration system offers are:
Totally enclosed filtration.
Ability to sterilise the system inline.
Range of interchangeable filter grades, to sterile microfiltration.
Ability to use XS speciality and Carbon treatment filter media.
Ability to pipe the housings in series or parallel to offer multi-stage filtration, increased filter area or as a duty and standby set-up.
Minimised product loss with the ability to blow down the housing(s) at the end of a run.
Quick and simple to change out spent filter modules.
Low capital cost.
Economic running costs.
Some example filtration options are shown below:
Option 1 :
where pre-filtration is not required, lenticular module filter followed by final BorsoPleat 10 micron absolute pleated cartridge filter and then bottling.
BorsoPleat 40 micron pleated cartridge filter followed by a BorsoPleat 10 micron pleated cartridge filter, then a lenticular module filter and final BorsoPleat 10 micron absolute pleated cartridge filter and then bottling.
where activated carbon is used, BorsoPleat 40 micron pleated cartridge filter followed by activated carbon module and then polishing module and BorsoPleat 10 micron absolute pleated filter cartridges and bottling.
CORRECT FILTRATION CHOICE – to enable the craft distiller to make the correct choice of filtration equipment and media, Van Borselen can offer a full range of laboratory scale filtration options to make the decision easier.
Through extensive laboratory trials the correct filter type, level of filtration, flowrate and potential lifetime of the filter can be determined.
Trials can be either carried out at the customer’s site, or under controlled conditions within the research and development facility at Carlson Filtration.
For details on any of the products Carlson Filtration can offer to the craft distiller, please contact your sales consultant at Van Borselen Filters.
Total Filtration Management
Cartridges, Bags and Housings
Van Borselen also offers a comprehensive range of cartridges from wound, pleated and thermal bonded through to PES membranes as well as bags in felt, nylon monofilament, polypropylene and polyester. They are available for either new application or to retrofit to current installations.
A full range of housings are also available to compliment this range.