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    Thread: Syringe filters

    1. #1
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      Syringe filters

      Looking for some info, first-time home brewing here, getting my materials ready and was wondering how many times I can use a
      .45um syringe filter?

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      Quote Originally Posted by Hightrain View Post
      Looking for some info, first-time home brewing here, getting my materials ready and was wondering how many times I can use a
      .45um syringe filter?
      I think the issue would be if you reuse the filter at a later date how do you keep it sterilized?

      Sent from my SM-N950U using Tapatalk

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      Quote Originally Posted by Hightrain View Post
      Looking for some info, first-time home brewing here, getting my materials ready and was wondering how many times I can use a
      .45um syringe filter?
      Once .I usually get about 15m thru one.they clog up n get real slow

      Sent from my SM-S327VL using Tapatalk

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    7. #4
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      I hope it is more then 15m, there 13 and some change on Amazon for one whatman.

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      You can buy them alot cheaper then $13 each
      Syringe Filters - GPZ Med Lab

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      I would get the .22u filter as that is the industry standard last I looked and will catch much more of what yo don't want ending up getting into you. That is what I have used for many years. I can usually get around 100mls through a filter before it gets so slow and hard to push that I am afraid of rupturing them.

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    13. #7
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      Thanks i will look at that site.

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      What are the thoughts on sterile vs. Non-sterile filters

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      As stated above, get .22 micron. That is the USP standard for sterility. Also try to get the largest diameter, e.g. 25mm. More surface area=lessclogging.
      Some people prefilter with .45 to extend life of .22.
      As far as sterility, just push some BA through the filter first. When it likely your are using questionably sterile/clean glassware and doing all this in the open air, sterile filters would be overkill and not cost effective.

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      Quote Originally Posted by Hightrain View Post
      Thanks i will look at that site.
      With unsterile filters you could introduce organisms that you do't want and would only filter out the debri that passes through them. My health is worth a few bucks.

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