Best separatory funnels for labs according to redditors

It's basically these four items, seperator funnel, glass funnel, erlenmeyer flask, and a stand. Although I don't know exactly what stand they're using in this particular setup (whether it was purchased in a set (although it does look awfully familiar)), it's not too difficult to reproduce.

So I started with the Yama, but thought it would be a fun project to try to make something from scratch. Had to turn to chem glassware, which is a little pricey but I think looks cool. I used a separatory funnel, Buchner funnel, and Florence flask.

Glassware ended up costing about $83, and I used the ring stand we had in the science lab at school.

That question has been asked a lot. Here's some research I collected 1 2 3. While expensive, if you are seriously considering getting a tower versus using a toddy, I would just bite the bullet and get the Yama tower.

• [I personally think this is your best option] (http://coffeegeek.com/images/58036/aeropress-cold-brew-tower.jpg)
  
  
• Here, they call it both a water ball and a water bowl as well as some interesting translation choices.
  
  
• [Here's a reddit thread on the topic so you can just make your own] (http://www.reddit.com/r/DIY/comments/1eut17/looking_to_make_a_cold_brew_drip_coffee_maker/)
  
  If chemistry is your thing /u/thegreatbrendini suggests:
  >Here you go, I'm not positive about the size of the filter you're going to need/want. I would imagine 150 mL would be good but you could go bigger or smaller depending on what you want. The bigger you go the buchner funnels get expensive fast.
  
  >Top Part:http://www.amazon.com/American-Educational-Conical-Separatory-Capacity/dp/B006580L96/ref=sr_1_3?ie=UTF8&qid=1369273329&sr=8-3&keywords=separatory+funnel
  
  >Middle: http://www.amazon.com/Chemglass-CG-1402-18-Filtering-Capacity-Diameter/dp/B005WX2RQU/ref=sr_1_3?ie=UTF8&qid=1369273592&sr=8-3&keywords=fritted+buchner+coarse
  
  >Bottom
  http://www.amazon.com/PYREX-500mL-Narrow-Erlenmeyer-Flasks/dp/B004XR5V6E/ref=sr_1_6?ie=UTF8&qid=1369273642&sr=8-6&keywords=erlenmeyer+flask
  
  edit formatting
  
  

I came across a coffee shop in Tel Aviv called Cafelix that used chemistry equipment and a chemex to make their cold brew. It worked pretty well.

Here's a link to a separator similar to the one they bought:
http://www.amazon.com/Separatory-Funnel-PTFE-Stopcock-500ml/dp/B003QJRS20

I bought one like this and will be experimenting soon!

Here is an amazon link to roughly the same setup, many exist (sorry for link format":

http://www.amazon.com/Separatory-Funnel-PTFE-Stopcock-500ml/dp/B003QJRS20/ref=sr_1_16?s=industrial&ie=UTF8&qid=1374109784&sr=1-16

I go to local hardware shops but i dont think i can find 400 or close mesh filter. it is a long shot but i will try anyway.

in the other hand i find a idea. i just fill all coffee to aeropress body.
i suppose it can easily collect 2 - 3 oz coffee, and my valve drip above them.
it will look like this

Top part: https://www.amazon.com/American-Educational-Separatory-Stopcock-Capacity/dp/B00657UDOU/ref=sr_1_11?s=industrial&ie=UTF8&qid=1493564501&sr=1-11&keywords=separatory+funnel

2. part aeropress body with metal filter

3. part is hario server or s.thing similar

what do you think about that? Can it work as well as cold bruer ?

I use a 25ml glass pipette with bulb and a separatory funnel. You don't have to use a separatory funnel but it really speeds up the process.

https://www.amazon.com/Volumetric-Pipette-Serological-Dropping-Pipettes/dp/B07YZCQ1FH/ref=mp_s_a_1_21
(These are 20ml, these work too)

https://www.amazon.com/dp/B07XKXHCR7/ref=cm_sw_r_cp_awdb_t1_x1A1DbG9DM1NQ

https://www.amazon.com/StonyLab-Borosilicate-1000ml-Separatory-Stopcock/dp/B0781BB3NM/ref=mp_s_a_1_3

Do you have access to a pressure cooker? A pressure-cooker will prevent boiling and a lot of agitation which will allow the fat to rise to the top of the broth as it cooks. If you give this a shot make sure that you allow the pressure-cooker to depressurize naturally and fully; if you open the lid before then the liquid may instantly boil. Ladle out the broth into a deep but narrow container and chill. When it has gelled cut the top layer off (there is likely a bit of fat there). If you really want to get fancy you could order a separatory funnel like this one on Amazon but that may be further than you need to go :) I would seriously be surprised if any shops are using a funnel like that, but hey if it's just for fun why not? That's what a chemist would do!

Here you go, I'm not positive about the size of the filter you're going to need/want. I would imagine 150 mL would be good but you could go bigger or smaller depending on what you want. The bigger you go the buchner funnels get expensive fast.

Top Part:

http://www.amazon.com/American-Educational-Conical-Separatory-Capacity/dp/B006580L96/ref=sr_1_3?ie=UTF8&qid=1369273329&sr=8-3&keywords=separatory+funnel

Middle:
http://www.amazon.com/Chemglass-CG-1402-18-Filtering-Capacity-Diameter/dp/B005WX2RQU/ref=sr_1_3?ie=UTF8&qid=1369273592&sr=8-3&keywords=fritted+buchner+coarse

Bottom

http://www.amazon.com/PYREX-500mL-Narrow-Erlenmeyer-Flasks/dp/B004XR5V6E/ref=sr_1_6?ie=UTF8&qid=1369273642&sr=8-6&keywords=erlenmeyer+flask

Realized I never did post you that link. Here it is