Filter question

GreatGunz

Banana
I getting ready for my first brew !
I have .45 syringe filters are these ok to use?
i have seen threads that mention .2?
 
Test E sorry Bro........ My theory was that a .45 micron is smaller then a .20 correct?

so smaller would be better for filtering correct?
 
.45 is bigger than .2, in a lab setting they would use a 22 micron filter to make it sterile, this is the biggest filter to use when your trying to keep your test solutions sterile. A 1 micron can also be used if there is a possibility of a certain bacterium being present, but that is rare.

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So the .45 micron cannot be used?

can I filter then heat or use a bit more B/A to ensure its steril?

I already have them.......
 
well ive used 45 before but if u want to be safe u could run it through a 45 then a .2 as that will remove virus as well as bacteria..
surpose it depends on how clean u are.
but maybe i got i wrong and u cant use a .45 but i did not die..lol..but monkey is the man and ive got to say he knows his s%&*T
 
I have always used the Whatman .45 and never had a problem. However, if I had a vacuum filtering device, I would go with the .22. My thumb gets sore enough with a .45 syringe filter.
 
You can use a .45 micron, but when you want to say the solution is "Sterile" lab setting, .2 micron is used, if you search on Millpore or Whattman MFG sites, they list chemicals and temps and sterile factors of such filters to be used for research purposes. 0.2 micron should be used whenever possible, if .45 is all you got, it works too, but .2 is best.
 
the smaller it is the safer you are that all bacteria is stopped. some even go through 0.1 micron which is excessive though
 
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