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Is a lenticular filter worth the investment over plate filters?

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4 answers

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Whether a lenticular filter is 'worth' investing in a question that, as always, depends on your specific brewery and whether you have the necessary capital, but as a general observation, many small breweries are moving towards lenticular filters over plate filters.  Lenticular filters are fairly low cost (though they are more expensive than plate filters), are easy to use, and makes better, more efficient use of labor than equivalent plate filters.  Further, lenticular filters lower product losses, improving production.
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Katherine Marchetti at AFTEK, Inc.

Using lenticular filters raises the issue of sanitization, especially in warm areas. Also, the cost per bbls using sheets over lenticular is much less as is the impact on carbon footprints. There is a filter sheet that is 100% cellulose. No DE or minerals. It's 100% compostable. Regarding drip loss, if you have a sheet filter with good seals and you use this sheet called BECOPAD, your drip loss will be minimal.

May 6, 2014

Katherine Marchetti at AFTEK, Inc.

Using the right sheet with a decent plate filter will not allow for O2 pick up

May 6, 2014

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My Comment

Our lenticular housings are less expensive than a plate filter, so the upfront cost is less. They take far less space than a plate filter. They are a closed system so if O2 pick up is a concern, then the lenticular system is far better. Plate filters are open systems. Lastly the hold up volume is far less and is easily "pushed" out with gas so your yield is considerable higher (the product you sell). The one downside is the cost of media per gallon filtered is higher with lenticular filters over pads/sheets, but typically more than offset by the other points I have mentioned. 
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lenticular filters are pads cut into disks and supported with plastic. the pros and cons are very highly contested at this point. Most of the use is in breweries with a very small bbl/year output and on 1 style of beer. Anything of distinct volume the consumable costs eats up any savings in capital costs over plate and frame filters. I have seen costing from 4x to 100x of standard pad costs due to lack of long term use, baking proteins into filtration media or flavor crossover to name a few. Where they excel is in pharma and distillery applications where there is a high dollar per volume of product being filtered and/ or low biological growth potential.
 Varied metrics go into proper filtration selection based on primary or secondary filtration, beer styles, volumes, packaging (draft, kegging, bottle), shelf life considerations, hops in the fermentor, year over year growth...

Good tool selection takes time
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Our lenticular filter housings are less expensive than a plate and frame filter though the upfront cost for the media is higher over plate and frame pads. You make up for the difference by regenerating the media and storing it wet to use again and again until the module is full of solids.
The lenticular filter takes less time to set up and tear down. It is a closed system so there is no oxidation or drip loss. It also takes up a lot less space. 
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