Filtering finished oils

[Dirthand]

I used Membrane Solutions.

Pes are not good for filtering oils. I personal experience.... they will melt.

 

[Spaceman Spiff]

View attachment 314818

"Micro-emboli" just rolls off the tongue,

Also this; "USP or that vial's not for me".

And: "Particulates. The vile in vials."

View attachment 314819

Meanwhile people use cotton balls to filter and inject heroin.

 

[Dirthand]

Stoppers are shit

They are.. I generally use the bigger ones for short term storage...

 

[Dirthand]

Meanwhile people use cotton balls to filter and inject heroin.

Or a peice of a cigarette filter...(personal experience)

 

[Ghoul]

Meanwhile people use cotton balls to filter and inject heroin.

Heroin users were the original "bubble boys", with syringe filters available at needle exchanges around the world for the last decade. (some even offer 5 sizes depending on what drug and filler you've got, down to .22um)



View: https://youtu.be/WUk7nTSxzW0

credit @readalot

AAS users are the filthy drug addicts by comparison.

 

[OldGHGuy]

Pes are not good for filtering oils. I personal experience.... they will melt.

What membrane material do you recommend for MCT/GSO?

 

[Ghoul]

What membrane material do you recommend for MCT/GSO?

PTFE. Ignore the "for venting" stuff, it works for oils.

 

[OldGHGuy]

The foreign material doesnt appear to be filter related but what do I know. Ordering PTFE but I think I will still switch vial brands for good measure. Thanks gents

 

[Dirthand]

What membrane material do you recommend for MCT/GSO?

Amazon.com

I've used couple hundred of these..

 

[OldGHGuy]

Amazon.com

I've used couple hundred of these..

Thanks friend. Ya somehow I missed the PTFE part in the earlier posts

 

[readalot]

Heroin users were the original "bubble boys", with syringe filters available at needle exchanges around the world for the last decade. (some even offer 5 sizes depending on what drug and filler you've got, down to .22um)



View: https://youtu.be/WUk7nTSxzW0

credit @readalot

AAS users are the filthy drug addicts by comparison.

Haha. Cig filter just the pre-pre filter. Cig filter to 0.65 to 0.2 um for the "win".

Thanks for sharing!

 

[Ghoul]

Haha. Cig filter just the pre-pre filter. Cig filter to 0.65 to 0.2 um

Thanks for sharing!

Damn, just noticed they offer a .5um filter for AAS(which you can also use to filter your ground up adderall tablets apparently).

 

[mknodc13]

Just my opinion but these vials on Amazon are trash. I bought a box of them (they come individually wrapped in twos) for filtering "semi-finished" oils into. For practice (I know...) I filtered one of my pharma vials into one of them and now I have multiple floaters in the oil! There were no visible floaters in the pharma vial + the vial was filtered at .22um. The floaters could have only already been in the vial. Caveat emptor on this brand of cheap vials.

I will toss them and order the recommended Ultra Spec vials. Lesson learned.

I’ve used 4 of these now to filter both GA and QSC oils. No floaters found in any of them, but it seems like the stoppers don’t seal very well. One of the the vials, when I draw in oil I get a steady stream of bubbles, which I’ve only seen with other vials in the past if I forget to push a little air in first.

 

[Ateam2023]

Strange ks-tek has always been great with the vials and many of the brewers here use them

i been using these and have had no problems,,

 

[Ateam2023]

Amazon.com

I've used couple hundred of these..

will confirm on that brand of Syringe filter,, I've filtered up to 40 ml per filter without issue, i'm sure you could go much higher but they are cheap enough where you can be picky about it,,

 

[Sampei]

Stoppers are shit

Of dat I do agree

 

[zpped]

Idk - does "sterile" necessarily mean no foreign material? Maybe they're not exclusive. If the chinese guy doing the steam sterilization had a dandruff problem and stuck his face in the steam the dandruff could theoretically be sterile? Maybe its nothing...

No absolutely a sterile vial could still have some particulate inside it. Although I'm pretty sure an operation the size of ks-tek has all automated factory line.

But I did once receive a ks-tek vial missing a stopper.

 

[Chickenlegs]

Would these be acceptable for filtering about 5ml at a time? I know they need to be sterile and ptfe, but do they also need to be “hydrophobic”

 

[Ghoul]

Would these be acceptable for filtering about 5ml at a time? I know they need to be sterile and ptfe, but do they also need to be “hydrophobic”

Looks ok to me, but 13mm will slow things down, 25mm would be preferable, with just slightly more oil lost to the filter.

 

[Dirthand]

Would these be acceptable for filtering about 5ml at a time? I know they need to be sterile and ptfe, but do they also need to be “hydrophobic”

I would not use that brand.. the last batch of biomed i got i had to throw them away. They made my gear cloudy.