Cold Brewed Coffee using a French Press

Luke | August 9, 2007 | Tags: - - - - |
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I have been a big fan of cold brewed coffee since I first tried it. I learned about this method from a Washington Post article on the Toddy, which is a great device for cold brewing coffee. The article described the smooth, but full flavored cup that cold brewing produces and I had to give it a try. I ordered a Toddy and we have been brewing with for about 3 years. The Toddy makes it really easy to produce a large batch of coffee concentrate. Place the filter pad in the bottom, plug the drip hole, throw in a pound of coffee and then add 2 quarts of water. You then wait 2 hours and drain into a carafe. The concentrate can then be mixed with milk or cold water for a great iced coffee or with hot water. It can keep in the fridge for two weeks.

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I was hooked on this system. Mixing the concentrate with milk produced an extra tasty iced coffee. This may sound weird but the taste comes close to matching the smell of fresh coffee as any method I have tried. The other great part is that you can use normal pre-ground, regular old Foldgers and still get great results. You don’t necessarily get a very complex flavor “profile” with lots of different notes, but you do get a very strong coffee flavor. It taste almost like melted coffee ice cream… in a good way!

All of this joy came to an end when my Toddy brewing bucket developed a small crack that caused it to leak. Luckily right around the same time someone gave us a French press as a gift. It produced a great cup of coffee, but one that was quite different than the Toddy. As summer rolled around, I yearned for a good cup of iced coffee, and not the watered down kind that comes from pouring hot coffee over ice.

Luckily it eventually dawned on me that cold brewing coffee doesn’t required special tools. The real magic is in letting the coffee and water sit together. The Toddy’s real strength was in making it easy to strain a lot of coffee. While pondering this I realized that the French press was also good at straining coffee grounds, and I set off on a path of discovery. Actually all I did was calculate backwards the water/coffee ratio in the Toddy recipe, throw it in the French press and then gave it a try in the morning. To my surprise I was able to easily filter out the coffee grounds and the resulting concentrate produced a great cup of coffee. I originally started measuring the coffee out by weight, but then got lazy and used volume. So far my results have been great! My French press is not big enough to make a full pound of coffee, but I find that even though the concentrate can be stored for 14 days, it does start to taste stale towards the end. The smaller batches taste fresher.

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Cold Brewed Coffee Using a French Press

Ingredients:

  • French press (my Bodum one holds about 3 cups, I think)
  • 1 cup coffee (I just drip ground, crappy coffee. I have seen coarse ground recommended for cold brewed coffee. Feel free to experiment and try better coffee and a coarser grind. Add a comment if you do.)
  • 2 cups water

Directions:

  1. Pour the coffee in the press and then add the water. On my unit the water and coffee comes right up to where the plunger would start. Depending on how strong your coffee is you may want a little more or less water.
  2. Stir the coffee with a wooden spoon of chopstick. You want to make sure all of the coffee grounds are wet. Wait, about two minutes and stir again. Some of the grounds should now settle to the bottom instead of all floating at the top.
  3. Wait 12 hours. I have seen other recipes that say it should be good after 4 hours. I have also other recommendations that after 15 hours or so, you start to extract some of the bitter flavors from the coffee. I usually aim for over night.
  4. Press down slowly on the plunger. Pour out the concentrate into an airtight container. You might want to avoid pouring the very last part, it might be a little murky.
  5. To make coffee either add cold water, milk or hot water. The ratio used depends on how strong you want your cup to be. I usually do about 1/4 or 1/6 concentrate and the rest milk. Experiment and see what tastes best.

38 Comments on “Cold Brewed Coffee using a French Press”

  1. [...] My thanks go to whoever it was that tweeted about this article, which led me to this one, and got me interested in trying this cold-brewing thing in the first [...]

  2. Cat says:

    love, Love LOVE this method of brewing for making iced coffee! CC’s Coffee House in south Louisiana uses cold brewed coffee to make their iced coffees and they are delish. Unfortunately no CC’s in north Louisiana, just Starbucks and a few independent coffee/wifi cafe’s that ice down hot expresso to make iced coffees. Cold brewed is infintely better! Now I make my iced mocha caramel coffee at home and it is fantastic. Thanks Luke!

    I have bought my son a french press and all the stuff he needs to make iced coffees at home as he is addicted to them. Not sure if it’s much cheaper, but iced coffee on demand rather than driving halfway across town to get it (he lives in south Louisiana) can’t be beat — and you don’t have the hit and miss flavor wise depending on who is working at the coffee house at the time!

    After 3 years this blog is still making a difference to coffee drinkers. WTG Luke!!!!

  3. Eric says:

    Thanks for the post, I’ve been doing this for a week or so now. I think I might be doing something wrong, though. While the coffee tastes great, I need to put about of third of a cup of extract into each mug of coffee to get it strong enough. Consequently, I go through the two cups of concentrate in about three days (two mugs of coffee per day). When I brew it hot, it only takes 1 tbs of grounds per mug. So I’ve switched from 6 tbs in three days to 16 (one cup). Does this sound right? I mean, I like it better, but I’m not sure it’s three times better. Thanks!

    • Luke says:

      You know, that is a good question! I have a couple of thoughts. I wonder if you tried a strong roast of coffee if the concentrate would be stronger. Another thing to try is letting the brew steep for longer. I don’t I remember having to use as much concentrate when I did. I am going to start making cold-brew coffee again, so I will update this with the ratio I end using and try to figure out how many TBS it takes.

    • Eric says:

      Thanks, Luke. I’m letting it steep a little longer (14 hours instead of 12). That seems to be helping, I only need three tbs now. I’m also buying the cheaper pre-ground coffee. So those two combined have my costs back to where they were before.

      Anyways, thanks again for this recipe. I mostly use it for hot coffee, but it’s helped a ton with my heartburn.

  4. Michele says:

    Found you after doing a google search after forgetting where I read an article about cold brewing via french press for iced coffee and this is even more helpful than my original (lost) source! You are being shared on facebook too!

  5. Stevo El says:

    I have several presses of different sizes, but my favorite for iced coffee is the (Bodum) Chambord 8 cup (1L). I have a spare beaker and keep the ‘cage’ it goes in loose enough so it slides out easily. So basically, with nothing but the glass beaker, I add 160-180 grams of slightly coarser-than-drip, medium-ish roast (can’t stand roast flavor, personally) good estate or single origin coffee. I then saturate as much coffee as I can with cold water up to the spout, wait a few minutes for everything to settle/bubble (the water level usually drops as the the liquid works its way down there), then top it back off. Next, it gets covered with plastic wrap or whatever, with NO STIRRING before it goes to rest at room temp on my counter, away from direct sunlight. 8-12 hours later, I uncover it, give it a good stir with a spoon to let the rest of the grinds settle and then I scoop the foamy stuff off the top (gives clearer taste IMO) and discard that in the sink/compost. I put the beaker back into the pour ‘cage’ (or sometimes not, if I had never removed it in the first place), the plunger goes in and then it’s carefully strained. I make it a point to use it within a week since the oils tend to get a little weird for my tastes when left in the fridge for longer.

    If I need to make more at a time, I simply use an extra beaker for the same size plunger and do two at the same time, straining as needed.

    If you’re a fresh-roasted, grind-it-at-home fanatic, cold-brew is great for any coffees you might have floating around that are two weeks off roast or more.

  6. [...] because it does not bother my acid reflux as much. If you are not familiar with the procedure, this website outlines the procedure. I have fine-tuned my method to be slightly more specific: 1. I always [...]

  7. [...] how I did it: Basically I followed this method. I put 1 part coffee (1 cup) and 2 parts cold tap water (2 cups) in to my handy bodum french [...]

  8. corinna says:

    perfect. I’m trying it tonight! How long does it keep in the fridge?

    • Luke says:

      It should be good for about two weeks if you keep it in an air tight container. It starts to taste a little stale towards the end. If you mix it with milk and sugar it is tough to tell the difference though!

  9. phquaryn says:

    Hi there – I just bookmarked this page and have been experimenting with cold brewing coffee using your French Press method. Thank you for posting this. Even two years later, people are still finding this article helpful!

  10. Kathi says:

    This sounds really great. After a move, Ihaven’t been able to find the plug & the filter from my Coffe Toddy was not usable anymore. The store where I originally bought my Coffee Toddy went out of business & I haven’t been able to find a place the carries the Coffee Toddy or replacement parts. I can’t wait to get home & try this out. I do have a functional french press. Thanks.

  11. Hey, this sounds great! I don’t have a coffee maker yet, so I probably won’t get one now. I’ll try this one out first.

    Gay

  12. [...] Instead of using a contraption made just for cold-brewing and which really can’t be used for anything else, we opted for a cute little French press instead, on the recommendation of this blog post. [...]

  13. weeklyroast says:

    This is a great alternative to using the Toddy system. Lots of people use dark roasted coffee in a drip-brew since it’s smoother and has less acidity, but if you’re cold brewing, you might want to try a medium or light roast since cold brewing makes a smoother brew anyway.

  14. Brian says:

    FOr cold-brewing, I’ve been told to use a medium roast. Is this true? What is your preferred roast for cold coffee.

  15. [...] Cold Brewed Coffee using a French Press. [Comments (0)]  [link]  [TB] [...]

  16. HeatherK says:

    When you cold-brew coffee in a french press, if is seems to be murky or dirty, strain it through a normal coffee filter and all the dust will be gone. i’ve also cold-brewed using an iced-tea pitcher, some cold water, and a fine cotton bag with the grounds in it. Squeeze the bag out after 12 hours and you got yerrselfff some fiiine cold brewed coofffeee!

    yay caffeine.

  17. David says:

    Cold brewed coffee is much healthier than hot brewed. Hot brewing causes the fats and oils to be extracted from the coffee.

  18. Nat says:

    You can also add hot water or steamed milk to the extract for a hot version of toddy that has less acidity than regular coffee.

  19. Zac says:

    Same here. GO TO ROSS’s they have french presses for 6 bucks right now! It really brews a nice cup.

  20. Lorilee says:

    I just found a small French Press at Ross Dress For Less. I’ll have to give your recipe a try. I have been hooked on iced coffee this summer. I have a Saeco machine. I make a large espresso, pour it over a lidded container with Splenda and ice and give it a good shake. I then pour it into a glass and add a splash of milk.

  21. Ben says:

    I’ve been making this as regular strength coffee rather than as concentrate. I just grind up about 2/3 cup of beans in burr grinder to course grind, add them to the French press (the same model pictured above, oddly enough), fill with water and refrigerate overnight. My wife and I just add creamer or half and half in the morning.

    I haven’t tried regular ground coffee, but Whole Foods “Pleasant Morning Buzz” (a fairly dark roast) has been working really well.

  22. Rebecca says:

    I love iced coffee and am looking forward to trying this. But I have one question. Do you let the coffee brew overnight at room temperature, or do you put it in the refridgerator?

  23. Tom says:

    I found that normal espresso just thrown into a cup of cold milk with ice in it works just fine,
    but then again i spend all day doing this a a barista,

    o loved iced coffee (specially with some caramal)

    i would like to give this a try :)

    (but i think i will steal some freshly ground coffee from work lol)

  24. Jessie says:

    How many ounces total is your press? Different presses seem to measure a cup of coffee any where from 6-8 ounces.
    thanks I love cold brew toddy!

  25. Luke says:

    Yea, I have wondered if heating the water first might bring out more flavor. I think some of the problem with doing that is that it will also bring out some of the bitterness and off flavors that you get in over brewed coffee. It could be worth a try though!

  26. Anthony says:

    I know we are using a cold brew method but couldn’t help wonder about the impact of starting the initial brews with increasingly higher temperatures of water.

  27. Anthony says:

    Just left your Cook’s Illustrated recipe for great bread and began to search your site when I chanced upon your cold coffee extract. I remember sipping cold coffee (from the refrigerator) mixed with milk and sugar during really hot, muggy summer days. Totally refreshing and you can really taste the coffee. I’ll use my Bodum for your recipe real soon.
    Great site!
    Tony

  28. Luke says:

    Yep! you add a whole cup of ground coffee. The coffee extract you end up is really strong though. You only need a couple table spoons of the extract to make a cup. Mix it with hot water, or some milk.

  29. Dhruv says:

    I’ve been dying to make some decent coffee with the rubbish pre-ground crap I get – this sounds fantastic!
    Just one question though – you put in one whole cup of coffee grounds??

    I’m giving this a try tonight!

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