MESO-Rx
Anabolic Steroids
Using a Buchner Funnel For Filtering Oils
- Thread starter aceroids1
- Start date
Skarpyona
Member
It's a pain in the ass. You have to always worry about adequate filter fitment, the possibility of your gear not being properly filtered due to it bypassing the filter, leaks.
I entertained the idea for a while, but ultimately decided on bottle top filters. They work very well. Why mess with what isn't broken
I entertained the idea for a while, but ultimately decided on bottle top filters. They work very well. Why mess with what isn't broken
Great message, but why would the oils bypass the filter paper membranes? They have filter papers that are specifically designed for the Buchner Funnels.
Also, I'd prefer glass or porcelain over plastic since I'm aware of microplastics and would prefer not to take chances with plastic bottle tops if not needed. If Buchner doesnt work & last resort, then definitely will still get plastic.
Skarpyona
Member
If I'm not mistaken, your buchner set-up would look like this for the top portion?
Due to the fact the filter is placed over the holes and not hermetically sealed, under vacuum, the oil could potentially leak.
For me personally, this fact alone merits looking to a more foolproof method.
I understand your apprehension about plastics, but in this context, they work and are an industry standard. If it's good enough for pharmaceutical companies and labs doing research, it's good enough for the homebrewer
I believe that these Buchner Funnels also have a top lid piece to seal when pumping and vacuuming.
The things that I like about the Buchner Funnel is that its reusable or you dont have to throw it away like you would with the plastic bottle tops. It's also stronger as it's made of porcelain material and wouldnt crack or break as easily. I could also throw it into a pressure cooker to steam clean it (sterilize it) and never have to worry about microbial life and having it crack while sterilizing. Also, you'd never have to worry about microplastics getting in.
I know that you trust pharmaceuticals, but personally dont. Too many times they give medications that create health problems. I'd prefer to be safe than sorry.
I'm not saying that the bottle tops arent the best solution or that they arent going to do a great job, I'm just saying that to me, at this point, Buchners are still winning my attention. I can see multiple reasons why they could be potentially better than plastic bottle tops as far as durability & saving money in the long run since they're reusable & plastic Zapcap Bottle Tops are to be thrown away after each use.
Yeah, I've seen these too and like that they're reusable. What type of filter do you use with this one? Is it still the 0.22um filter paper membrane or something else?
Also, why would you prefer to throw away a plastic bottle top and have to keep buying more, when this glass piece that you shared here is pretty solid and can be used almost indefinitely?
Wouldnt you agree that the glass is a bit more solid, permanent, & saves money, especially in the long run?
Why would you prefer plastic over glass or porcelain?
I absolutely agree with you, but I don't brew for just myself so for time saving and ease I prefer disposable ones. And you would buy sterile .22 filter disks that match the inside diameter of the funnel.
They work great for filtering meth… lol… INSANELY slow, even /w light vacuum filtering the post reaction product of a sandmeyer reaction to make gbl/ghb. 3L in each funnel probably took over 2 or 3 hours, I imagine it would be okay to use with gear, it might take a little bit of time because of the thickness, but you probably would be working with <200ml volume at a time anyways. Personally I hated the syringe filter bullshit, and will be using bottle top filters from now on.
The unit itself will work just fine, but you need to use nylon or pvdf filters. Mixed Cellulose Ester filters will ruin your gear. Pvdf filters are first choice and nylon coming in second.
Also if you go with this unit make sure you sterilize it properly especially the receiver flask!
If the hand pump doesn't work good go with this vacuum pump
