.2um vs .1um bottle top filters

[Jeffg353]

I'm about to dip my toes into the art of homebrewing. I know it's recommended to use a .2um pore size. But is it overkill to filter through both a .2um and then a .1um? Is it worth the extra hundred or so $$ to get the .1um filters?

What amount of liquid are these rated to filter before having to be replaced 500ml, 1000mL, more? I've looked but can't seem to find a straight answer. If I "pre-filtered" thru the .2um shouldn't the .1um get less clogged?

Rough guesstimate how much of end product gets lost/stuck in these bottle top filters?

Thanks in advance for any n all answers/thoughts/comments.

 

[mghoward74]

Bro, what' up

All you need is a .22 pvdf bottle top filter. Manufacturer's recommend replacing filter after each use. If it' for personal use, you can stretch it out to 500-1000 'll, depending on which filter you have.

If your using strong solvents then you'l need to change the filter to a pes style (iirc).

 

[Jeffg353]

Thank u saves me like $120

 

[Digger]

Bro, what' up

All you need is a .22 pvdf bottle top filter. Manufacturer's recommend replacing filter after each use. If it' for personal use, you can stretch it out to 500-1000 'll, depending on which filter you have.

If your using strong solvents then you'l need to change the filter to a pes style (iirc).

I thought for strong solvents you needed ptfe not pes?

 

[mghoward74]

I thought for strong solvents you needed ptfe not pes?

It's one of the them...haha. that' why I think I said our ( if I recall correctly).

I don' use strong solvents, so I'm basically a pvdf guy.

Respectfully

 

[Digger]

It's one of the them...haha. that' why I think I said our ( if I recall correctly).

I don' use strong solvents, so I'm basically a pvdf guy.

Respectfully

Right on brother. All good

 

[master.on]

I'm about to dip my toes into the art of homebrewing. I know it's recommended to use a .2um pore size. But is it overkill to filter through both a .2um and then a .1um? Is it worth the extra hundred or so $$ to get the .1um filters?

What amount of liquid are these rated to filter before having to be replaced 500ml, 1000mL, more? I've looked but can't seem to find a straight answer. If I "pre-filtered" thru the .2um shouldn't the .1um get less clogged?

Rough guesstimate how much of end product gets lost/stuck in these bottle top filters?

Thanks in advance for any n all answers/thoughts/comments.

While the 0.22 um seems to work fine
you can try 0.1 um for peace of mind
don't buy the whole pack yet, just buy one 0.1 to see if oil still flows at an acceptable rate.

Research shows 0.1 may be preferable over 0.22


Realizing that 0.2/0.22 µm-rated membranes do not always produce
sterile effluents, it has more recently been argued that the tighter 0.1 µm-rated filter
should be designated as the “sterilizing” filter, even without having a challenge standard
for such rated filters
Relative appropriateness of the 0.1 or 0.2 micron-rated membrane filters to serve as sterilizing devices (PDF Download Available)

 

[Jeffg353]

While the 0.22 um seems to work fine
you can try 0.1 um for peace of mind
don't buy the whole pack yet, just buy one 0.1 to see if oil still flows at an acceptable rate.

Research shows 0.1 may be preferable over 0.22


Realizing that 0.2/0.22 µm-rated membranes do not always produce
sterile effluents, it has more recently been argued that the tighter 0.1 µm-rated filter
should be designated as the “sterilizing” filter, even without having a challenge standard
for such rated filters
Relative appropriateness of the 0.1 or 0.2 micron-rated membrane filters to serve as sterilizing devices (PDF Download Available)

That's my plan. Was originally going to grab a 12 pack of the .1um but changed it to just 1. It sucks they only sell the .1um filters as the full assembly n not just the filter top. Considering I'm not going to use the cheap plastic media bottle it comes with. But I'm going to give it a shot with something cheap like test p n see what happens.

 

[master.on]

That's my plan. Was originally going to grab a 12 pack of the .1um but changed it to just 1. It sucks they only sell the .1um filters as the full assembly n not just the filter top. Considering I'm not going to use the cheap plastic media bottle it comes with. But I'm going to give it a shot with something cheap like test p n see what happens.

Keep us posted
Who knows, maybe 0.1s still flow nicely?

 

[Jeffg353]

Keep us posted
Who knows, maybe 0.1s still flow nicely?

I ordered 2. One I'll try straight thru the .1 filter. The other I'll try .2 then the .1 filter.

 

[master.on]

I ordered 2. One I'll try straight thru the .1 filter. The other I'll try .2 then the .1 filter.

Would you mind timing them to compare how long they take to filter the same amount of oil?

 

[Jeffg353]

Would you mind timing them to compare how long they take to filter the same amount of oil?

Sure I can do that. I'm still getting all the supplies together but hoping to have them in the next week or so. Will keep u posted.

 

[Mikey T]

I run my gear through a .22 and as long as i do it right after heating mix it pushes nice a smooth noI issues. Fliter was giving a fight at around 90ml mark for me. I was pushing test cyp 40ml 250/ml ..then a blend of mast p and tren a on second batch 50ml mix 100/100/ml