A Cory Glass Filter Rod Makes the Vacuum Coffeemaker Perfect

The Cory glass filter is a major part of making good vacuum coffee. If you took my advice from a few months ago, and tried using a vacuum coffee maker, you might have been disappointed at the design of the so-called “filter,” a sorry afterthought that looks like it’s made from a spring, a keychain and a bent paperclip:

DSCN41521 1024x768 A Cory Glass Filter Rod Makes the Vacuum Coffeemaker Perfect

I suggested using a vintage Cory glass filter rod with the Hario for more luxury; how about trying it with the Bodum for just a little more luxury? There are always plenty of Cory filters on eBay, so like an impatient fool I bid higher than I should have for one that was New In Box. OK, glass can be easily made clean and sterile, so what difference does it make whether it’s new and now what am I going to do with the box? Keep it forever in case I need to sell it back on eBay? But I want to keep it! Anyway, here’s the picture:

DSCN4145 1024x768 A Cory Glass Filter Rod Makes the Vacuum Coffeemaker Perfect

To install, you take the old one out and put it somewhere (in the trash, hopefully) and just place the Cory glass filter rod in the opening in the top globe. Start heating the water in the lower globe by itself on the stove, and add the grounds around the filter. Nothing could be easier. Put the top globe on, wait for the water to expand into it and let it gurgle for a minute or two. The glass rod gives it even more of the desired mad chemist look:

DSCN4133 768x1024 A Cory Glass Filter Rod Makes the Vacuum Coffeemaker Perfect

Take it off the heat and the filter does its job of letting the freshly-brewed coffee surge back down, while keeping the grounds up where they belong. The special secret bonus advantage is in the ease of cleaning up. Put the top globe over the disposal (or the garbage or the compost pile), pull out the rod from the top and just rinse the grounds away.

DSCN4141 1024x768 A Cory Glass Filter Rod Makes the Vacuum Coffeemaker Perfect

No mess and you can’t do that with the cheap metal and plastic filter that came with it. All in all, the way to go and available on eBay for under ten bucks.

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5 Responses to A Cory Glass Filter Rod Makes the Vacuum Coffeemaker Perfect

  1. greg says:

    How about simply buy an all-glass Cona vac pot and skip the navel-gazing on how to put this together altogether?

  2. Jason says:

    Hi Maxwell,

    Any idea what size your Cory filter is? I’ve read on Amazon.com that they come in an assortment of sizes. Any info on the filter’s box might come in handy if you can post it.

    • Maxwell says:

      Hi Jason –
      Thanks for the comment. There are the “new” and “old” Cory rods available. Original is 5.75″ long and new is 6.25″ long. Old Cory rod that just says Cory Rod, the new one will say New Cory Rod & be more slender. They seem to work equally well from what I’ve seen, but you can check out the threads on coffeegeek.com like this one that discusses them in great detail with pictures.
      mkperks@gmail.com
      Maxwell
      http://affordableluxuryblog.com

  3. tommie says:

    I have found a new cory rod u.s.pat.1927287

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