(Part 2) Best lab filters according to redditors

I think bottletop is the way to go, I've been doing it with syringe filters and shit but man it fucking sucks and it just doesn't feel like it's very sterile sometimes atleast for a newbie like myself. Used bottletop today to brew up some Test Cyp and holy shit was it way easier and just felt a lot more sterile. Used the following stuffs

https://www.amazon.com/ABN-Brake-Bleeder-Vacuum-Pump/dp/B005BT90DI/ref=sr_1_2?s=automotive&ie=UTF8&qid=1475218483&sr=1-2&keywords=hand+brake+pump

https://www.amazon.com/PYREX-250mL-Round-Storage-Bottles/dp/B004XR5TIO/

https://www.amazon.com/Autofil-1151-RLS-Bottle-Filtration-micrometer/dp/B00HSDSRHU

Going to be brewing some more test cyp/tren a/mast p/test p and maybe some other goodies in 2-3 months so I am glad I purchased all this now since thatll be a lot easier in the future :)

EDIT: Also I just use sterile vials so all I do after the stuff is filtered is draw it up in a 60ml syringe and put a needle in the vial before dropping 10ml into each sealed vial, I know some people buy open vials and the flip tops which is a lot cooler but you'd have to sterilize the vials and I don't have an autoclave or an oven I could use. :(

If you are going to start IVing, pick up micron filters and start using those from the very beginning. They will save you money and pain (by rendering your injections sterile, thereby avoiding infections, etc.) Not to mention, it will prevent all sorts of bullshit cuts from entering your bloodstream and collecting in your lungs and elsewhere.

Here is an example available on Amazon. Go for the 0.22um pore size (or lower.) this pore size is small enough that bacteria and some viruses are filtered out manually, rendering your shot much safer.

I went with this brand and am filtering in to a glass bottle.

https://www.amazon.com/Autofil-Sterile-Disposable-Sterilizing-Membrane/dp/B00HSDSRHA

I started using these about 9 months ago and I won't use anything else. Just get the luer lock syringes w no needle. You can use the filters a few times too if you flush them well. Warm water has worked best for me. Hope that helps.

bottle top filters.
https://www.amazon.com/Whatman-10443421-Cellulose-
Regenerated-Bottletop/dp/B007GE9N3I/ref=sr_1_9?ie=UTF8&qid=1487620307&sr=8-9&keywords=whatman+filter
glass media bottle i use
https://www.amazon.com/PYREX-250mL-Round-Storage-Bottles/dp/B004XR5TIO/ref=sr_1_7?ie=UTF8&qid=1487620362&sr=8-7&keywords=glass+media+bottles
break bleeder
https://www.amazon.com/Mityvac-MV8000-Automotive-Test-Bleeding/dp/B00265M9SS/ref=sr_1_7?s=automotive&ie=UTF8&qid=1487620409&sr=1-7&keywords=brake+bleeder

This was from DL:

You guys convinced me to home brew. Especially after I just did some math on what my latest $2k purchase would get me.

Putting together the list, will be refining as I learn more.

• [Autoclave](http://www.amazon.com/Prestige-Classic-Electric-Autoclave- Sterilizer/dp/B002AR0NUI/ref=pd_sim_sbs_hpc_2?ie=UTF8&refRID=0E5AJ7PQ2CHM1083QMPT) -- $899
  
• 2 x Autoclave Gasket -- $120
  
• Hormone powder
  
• Filtered Cottonseed USP Oil 4 Liter -- $255
  
• Benzyl Benzoate USP 1 Liter -- $60.75
  
• Benzyl Alcohol USP 1 Liter -- $45
  
• 3ml TERUMO Luer Lock Syringe w/o Needle (Qty. 50) -- $8
  
• 1 x 10ml EXEL Luer Lock Syringe w/o Needle (Qty. 50) -- $15.25
  
• 5 x B-D 25g x 1.5' (Qty. 10) -- $11
  
• 5 x B-D Needles 18g 1.5 (Qty 10) -- $11
  
• Alcohol prep pads/wipes
  
• Accurate scale to hundredths place
  
• Calibration weight
  
• 2 x Corning Pyrex 3 Piece Glass Graduated Low Form Griffin Beaker Set, 50ml, 100ml, 250ml -- $29.90
  
• 4 x PYREX Griffin Low Form 400mL Beaker Graduated Ea -- $34
  
• 4 x Beaker - PYREX GLASS 10ml -- $22.72
  
• 2 x SEOH Class A Volumetric Flask Borosilicate Glass 250ML -- $29.90
  
• 2 x Beaker Filters -- 150ml Nalgene MF75 Bottle Top Filter - 33mm neck (Qty. 12) -- $145
  
• Vacuum Pump -- 1.5 CFM Portable -- $275
  
• Melting Point Checker
  
• Sterile .20um syringe filter (For Tren) -- $162.88
  
• Crimper
  
• Vials
  
• Caps
  
• Glass stir rod
  
• Agar plates
  
• Latex gloves
  
• Alconox Detergent Cleaning Concentrate 4 lb. Container -- $30.30
  
• Scilogex 86143101 Model MS-H280-Pro BlueSpin LED Circular-Top Digital Magnetic Hotplate Stirrer with Ceramic Coated Plate, 100/240V -- $200
  
• 2 x Bel-Art Scienceware 371100138 PTFE Octagon Spinbar Magnetic Stirrer Bar, with Integral Pivot Ring, White, 1" Length, 3/8" Diameter -- $13
  
• 3 x jugs isopropyl alcohol
  
• Propolyene Gylcol 300
  
• Lockable Medical Storage Box -- $44.50
  
• Horizontal Laminar Flow Hood 48" x 24" -- $1,900
  
  
  Which Bottle Top Filter?
  ---------------------------------
  
• Millipore Hydrophilic PVDF Stericup-GV Bottletop Filter Unit, Radio-Sterilized, 0.22µm Pore Size -- $225
  
  Or
  
  
• 2 x Beaker Filters -- 150ml Nalgene MF75 Bottle Top Filter - 33mm neck (Qty. 12) -- $145
  
  
  Which Pipettor?
  ---------------------------------
  
• VWR Ergonomic High-Performance Pipettor -- $267.02
  
  or
  
  
• BRAND seripettor* pro Bottletop Dispenser - 1-10 mL -- #296.30
  
  Money is not an object. I'm not the type to do things cheaply or in a half-assed way. Lets set up the dream home brew lab now. I'll post pictures.
  
  What to buy?
  
  

It can't be avoided. Something like this can help cut down on it though. You can make a funnel with it and just let it drip into a glass. You can sometimes find a good price on better paper, but it's rare. I wouldn't go less than 1.5 microns though. I use this paper in an Aeropress first to squeeze the tob, then filter with some better paper I have, but this paper would be good enough. also, the description says 10, but its a pack of 100.

I can't recommend any good filters, though I'm going to be trying these in my closed loop soon (once I actually run my closed loop. could be a week or two). http://www.amazon.com/Ahlstrom-0540-0700-Quantitative-Filter-Diameter/dp/B006H8QRJC/ref=sr_1_6?ie=UTF8&qid=1408804334&sr=8-6&keywords=10+micron+paper+filter. They also have glass roving filters that go down to 3 micron, which I might put after the 10 micron, but those filters cost like 80-120$ for a pack.

I think can tapping will definitely help. I had no issue using 25 micron while blasting open. To be honest, I think even 15 micron would still flow nicely. tbh, I'm just guessing.

If you haven't already, these guys have some pretty fine mesh was considering getting the smallest. Steel would be stronger than filter papers, I'd imagine.

I've read for vanilla pods that you want to filter it a TON but I'm not sure why exactly? maybe sugar related? Just remember seeing talk on ECF of using as little as 1-1.5 micron for vanilla bean extractions but it might just be someone trying to get a cleaner concentrate.

Without a vacuum set up, I think you might be able to get it to filter through as low as a 1.5 micron filter however, could probably just do a 2.5 and be just fine.

http://www.amazon.com/Ahlstrom-6010-0750-Qualitative-Filter-Diameter/dp/B007FXL5TU/ref=sr_1_1?s=industrial&ie=UTF8&qid=1415766046&sr=1-1&keywords=Ahlstrom+Qualitative+Filter+Paper+2.5+Micron

If youre going to go the bottle top route why don't you just buy the entire assembly instead of reusing a glass bottle?

Something like this.

I think you're right, it will be somewhere around a grand for the kit I'm planning...but because I'm growing at home, it's basically a one shot cost (minus alcohol and filtration media,) plus I'll get awesome product, at least as good as the stuff I can buy in the Recreational dispensaries, and better than anything I could get from the black market.
I am in a legal state, but good quality wax is STUPID expensive, over $100/g plus I'm growing the flower myself (so the "expensive" part of this is actually something I already have on hand.) I grew more than 4 pounds last year legally in my living room in a 8x4 tent.

I'm staying away from butane because I'm doing this in my condo in my living room and not in a real lab. If I had fume hoods, and a fire prevention system that didn't involve me holding a fire extinguisher, then I would be there. I did originally look at butane columns, and I totally could go that route...I just didn't like the safety aspect when combined with my condo as a location.

I am going to use a vacuum kit with one of THESE plugged into a 2000 ML erlenmeyer flask with the same 24/40 glass fitting between them. There will be a vacuum pump attached to the side inlet to generate suction.

I'll use THISfilter paper at the bottom, then like half an inch of diatomaceous earth above that for filter medium.

The alcohol and the activated charcoal will be poured carefully into the top, and then it will strain itself out.

I figure 1 or 2 passes and it will remove all of the charcoal (I've read 1 but I'm skeptical) with an approximately 9-12% loss factor (by weight) compared to the initial extract, but the polished extract should be chlorophyll free, and it should be a beautiful honeyed color.

I also bought one of THESE and one of THESE so if I am unhappy with the results from my column, I have a final "stupid fucking fine" filter that I can pass the ethanol extraction through. This will give me a final filtration of 0.2 microns, although due to the added cost to each batch, I'm hoping that I don't have to go this route. I suspect that the filter plate on this will clog very quickly, which is why I'm hoping to use diatomaceous earth as my "primary" filter medium. It is both very cheap and incredibly effective.

Because I'm doing this with my own weed (rather than trim) and I'm doing it in pretty small batches (I'm not selling this stuff...) I'm hoping that the source turbo, even though it's small, will do what I need it to.

These are the ones that I use.

I've done it a few times so far on my DE1. I'm not sure how effective it would be on a different machine, but I suppose the blooming/precise program might be a different benefit from the filtering.


I use these filters based on someone else's recommendation here. They're really nice quality. They fit perfectly within my VST portafilter as the bottom filter, but there's a bit of a gap for the filter on top of the puck, so I've been thinking of looking for a set of 57mm.


I definitely enjoy it, it produces a very sweet, flavorful cup with a better extraction, but at the expense of a thinner body from the filtering. Strangely I seem to get more visual channeling on the bottom of my portafilter, but that might be poor technique on my part.

Those look like they’re just pieces of paper.

I have been using these filters for quite some time Synthetic Filter Disks .

I trace a nickel and can get 15-20 filters out of one disk.

https://www.amazon.com/Simsii-Syringe-Filter-Sterile-Diameter/dp/B01BO6CH5E

I use these with bleeder

https://www.amazon.com/dp/B01D1TN0HG/ref=cm_sw_r_sms_c_api_i_dYfXCbAHTB1CM

These here

Yea .45 it is. It takes a bit of patience and a couple minutes back in the oven a few times. I couldn't imagine trying with a .22 micron. I will follow up when the carts are empty I made 3.

https://www.amazon.com/Ahlstrom-6090-1500-Qualitative-Filter-Diameter/dp/B006H8WWF0/ref=mp_s_a_1_3?keywords=ahlstrom+4+micron+paper+filter&qid=1574121701&sr=8-3

check this out my boy
its a filter but not the type youre annoyed with