My two wound 1 micron filters from Midwest Brewing gave out. I used them for one year. They were slow but you could get 10-15 gallons done on one of them. If you hurried your beer and the yeast didn’t get a chance to fully settle, it was slow going and sometimes you had to use two of them – switching out mid filtration.
These filters made clear beer.
This month I purchased a set of pleated filters from Flow-Max. 5 micron and 1 micron – thinking I would get the same results. Not so.
I then got the 0.35 micron nominal for $8 from Flow-Max – thinking that would HAVE to do the job at a good price.
Don’t use Flo-max filters for beer filtration…the 0.35 micron nominal must have a VERY WIDE distribution.
I don’t understand…the 0.35 micron has nothing on it. I tried this with a beer too, making sure they weren’t short by putting some extra silicone gaskets on…still cloudy.
I then got a $75 GE Flotrex 0.65 absolute micron filter – though hated doing it.
I refiltered the campfire pale ale:
The 0.65 micron GE Flowtrex did slow down considerably after 7 gallons. It took about an hour to filter 15 gallons but it yielded great results. I do have to say that the beer was 3 weeks old with only 2 days chilled to 45 degrees. So it probably had some yeast floating around which gummed it up.
So I guess the initial 1 micron spun filter $2.99 from midwestsupplies.com does the trick at a fraction of the cost. It consistently produced clear beer just like the above, right beer.
I was hoping pleated filters offered a faster way to filter for scale-up ability at a cheap price….not so much. There are many filter manufacturers, so I will keep trying and maybe start looking at commercial filters that GWKent has.