I’m sharing How to Make Cold Brew Coffee using a French press or using a strainer and paper filter system, and which method I prefer. I’ve included all my tips and resources and the cold brew coffee ratio I use to make the best DIY cold brew coffee recipe at home!
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Worth the Fuss
I get it. During the coldest of months having a piping hot cup of jo in hand is like putting on your comfy socks and snuggling up on the couch with your favorite blanket. But in the warmer months, a cold brew latte is like diving into a cool swimming pool and an enjoyable way to refresh in the afternoon. Do you have a seasonal preference?
Understanding why cold brew coffee is such a big deal takes some comparison. Have a cup of your hot morning brew. Then, drink an ice cold glass of homemade cold brew sweetened with your favorite sweetener and cut with your milk of choice, water or simply without any additions. You’ll notice the differences right away.
Before I share my best cold brew coffee recipe, cold brew tips, and how I DIY cold brew coffee at home in a French press and using a filter system, I want to share why I think cold brew is worth exploring.
Why Homemade DIY Cold Brew Coffee?
There’s reason why coffee shops are selling out of their coffee concentrate. Not only is it refreshing during the warmest months, but it’s less acidic than its hot sibling. I find it to have a richer, more subtle and somewhat chocolatey flavor profile too.
Both sippers are made of the same ingredients, but they taste vastly different. Although roasting plays an important role in teasing out the nuances of coffee bean flavor, it’s temperature and time that contribute most significantly to the flavor profile of your morning cuppa.
During the brewing process, the hot brew methods use heat to extract the bean’s flavors offering a more acidic profile while cold brew methods brew coffee at room or refrigerator temperature, like an infusion, offering a sweet, rich, and less acidic profile.
Also, it’s a refreshing way to get your caffeine fix in on a hot summer day! And seriously, it’s so simple to do.
Why Make DIY Cold Brew Coffee?
Making cold pressed coffee at home is more economical then purchasing at the corner coffee shop or store. From $0.10/oz for my latest purchase of beans verses $0.15 to $0.27/oz for a black cold brew from a coffee shop or in a convenient grab and go bottle at the store.
In other words, one cup of home cold brew will set you back about $0.80 whereas going out, an average of $1.86. That’s about ONE DOLLAR more per cup (and that’s average, not even the high end)! This may not sound like much but over time, that’s money in your pocket.
And there’s an added benefit. Brewing cold brew at home creates little to no waste. Those plastic cups and straws are using valuable resources only to be thrown away. They’re polluting our environment! And before you say recycling, recycling isn’t as feasible as it once was. Even if you take your own refillable container (thank you for that), you’re still paying more per cup.
Coffee can be purchased from a local roaster if available, thereby reducing the number of miles traveled by those coffee beans. Plus supporting the local economy just feels good!
The last benefit I’ll mention is you can DIY cold brew coffee to your own specifications. Make a cold brew that’ll curl your toes or one that’s a little more mellow, you’ll soon find the cold brew coffee ratio that fits your tastes.
How to Make Cold Brew Coffee at Home
Now that we have the why out of the way, let’s talk method before I share my best cold brew coffee recipe. I’ve made cold brew two ways at home.
The first way to make homemade cold brew coffee is the way I started making it until I realized, duah (!!), I can make it in my French press! But if you don’t have a French press to make cold press coffee, this first method works.
How to DIY Cold Brew Coffee Using a Coffee Filter and Gravity System
This is a quick how-to summary. For more detail, see recipe card below:
- Coarsely grind the coffee.
- In large mason jar add the coffee grounds and pour filtered water over the grounds.
- Submerge the grounds just so they are all below the surface of the water.
- Lid the container and set at room temperature over night or for about 12 hours.
- Filter the coffee using a paper filter, be careful here as it can easily tear. You may need to double up.
- Discard the filter in your compost bin or garden and transfer the cold brew to a mason jar or glass carafe.
How to Make Cold Brew Coffee in a French Press
My preferred brewing system is to make cold brew coffee in a French press. This is my self proclaimed cold press coffee maker! It does have limitations because a French press only holds three cups of water, but I find it to be the tidiest and no waste way for me to make cold brew at home. I can get about five servings out of this recipe when cut with milk or water. And I didn’t have to buy anything new to make it. In summary, here’s how to use a French press to DIY cold brew (see recipe card for details):
- Coarsely grind the coffee.
- In the French press container add the coffee grounds and pour filtered water over the grounds.
- Lid the French press and gently press the plunger slightly, just to submerge the grounds so they are all below the surface of the water – yet still at the top of the press. No need to stir.
- Set at room temperature over night or for about 12 hours.
- Use the plunger to s l o w l y press the grounds through the water.
- Discard coffee grounds in your compost bin or garden and transfer the cold brew to a mason jar or glass carafe.
See how simple it is to make cold brew coffee in a French press?
How Fine Should The Coffee Beans be Ground?
In a word, coarse. I use the commercial coffee grinder at the store where I buy my beans. I find this to be the most effecient way to grind the coffee beans to make cold brew concentrate. My little mini grinder at home just doesn’t cut it! I purchase the beans in bulk (economical), then grind them using the coarse setting on the commercial grinder. Don’t forget to reuse your coffee bag!
Let’s Talk Cold Brew Coffee Ratio
Cold brew, like hot brew, can be made to preference. There are a number of cold brew coffee ratios out there, but over time I’ve found what I like best. This is something you can play with and adjust, but my best cold brew coffee ratio is:
one part coffee to four parts water
OR: 1/4 cup (70g) ground coffee to 1 cup of water (205g)
This ratio produces a homemade cold brew coffee concentrate which then can be used to make my cold brew iced coffee recipe. This cold brew concentrate can be cut with water, or milk du jour and sweetener of choice or enjoy it straight.
One More Way I’ve Discovered to Cold Brew Coffee
After sharing my cold brew coffee in a French press method on Instagram, I received many DM’s and picture shares (thank you!). Everyone was making cold brew in their French Press, except ONE! My friend showed me her new DIY brewing, no waste system she found on Amazon. I was so impressed with her system I knew I had to share it as part of my DIY Cold Brew Coffee post.
It’s a 1 or 2 quart mason jar with a fitted stainless steel infuser that sets inside the mason jar! My friend told me this has changed the way she drinks coffee!
Now, I don’t plan on ordering since I already have a system that works for me. But if you’re looking for one, this is the cold brew system on Amazon (affiliate link).
Elevate Your DIY Homemade Cold Brew Coffee
There are many ways to enjoy cold brew. Here are my favorites:
- Stir in your favorite milk du jour for a cold brew iced coffee. I use homemade cashew milk.
- Stir in egg nog (need I say more)?
- Use maple syrup or simple syrup to sweeten your cold brew. How about an infused orange simple syryp?
- Add a tsp of vanilla extract for an iced vanilla cold brew latte.
- Add 1/4 tsp of almond extract for an iced almond cold brew latte (almond extract can be strong, so adjust to taste).
- Pour cold brew over ice cream for a cold brew affogato – OMG (!!)
- Make cold brew ice cubes so your cold brew doesn’t get watered down.
- Spike it with a coffee liqueur like Frangelico or Bailey’s and make a cold brew “holiday” coffee!
Let’s Review – General Rules of the DIY Cold Brew Road
- Use your French press or a coffee filter system to brew your cold brew.
- Use the cold brew ratio of one part ground coffee to four parts water – remember 1/4 C coffee grounds to 1 C water.
- Grind the beans coarse. The coarser the better.
- In fact, there’s no need to stir the coffee after pouring the water over the grounds. As long as the grounds are in contact with water, the flavor will be extracted.
- Steep the grounds at room temperature for about 12 hours (some say up to 24 hours).
Resources
If you’re looking to set up a home cold brew system, here are some resources to get you started (these are affiliate links):
- Your Favorite Coffee Beans – look for bulk, organic, shade grown, locally roasted if possible and if needed Swiss water decaffeinated coffee.
- French Press
- Spouted Glass Cup
- 1 Quart Mason Jar
- Paper Coffee Filters or a reusable Basket Filter
- Fine Strainer
- All in One Cold Brew Mason Jar Stainless Filter System
More Coffee Recipes to Love
- Vegan Mocha Shake
- Mamaw’s Holiday Coffee
- Homemade Thai Iced Coffee – by Kitchen Confidante
- Chocolate Almond Coffee Smoothie – by Floating Kitchen
- DIY Turkish Coffee – by FoolProof Living
the recipe
How to Make Cold Brew Coffee
Ingredients
- 3/4 C (70g) Coarse Ground Coffee
- 3 C (610g) Water room temperature or cold
Instructions
French Press Method:
- Coarsely grind the coffee.
- In the French press container add the coffee grounds and pour filtered water over the grounds. Lid the French press and gently press the plunger slightly, just to submerge the grounds so they are all below the surface of the water - yet still at the top of the press. No need to stir.Set at room temperature over night or for about 12 hours.
- After about 12 hours, use the plunger to s l o w l y press the grounds through the water.
- Discard coffee grounds in your compost bin or garden and transfer the cold brew to a mason jar or glass carafe.
Strainer and Coffee Filter Method:
- Coarsely grind the coffee.
- In a one quart (or one Liter) container add the coffee grounds and pour filtered water over the grounds. Gently, using the back of a spoon, submerge the grounds just so they are all below the surface of the water. No need to stir.Lid the container and set at room temperature over night or for about 12 hours.
- After about 12 hours, set a fine mesh strainer over a spouted container and insert a coffee filter. You can use a nut bag here or a reusable stainless steel filter for no waste if you like (see resources above). Give the coffee a stir, then pour the coffee and grounds into the filter allowing the filter to capture the grounds and strain into the spouted container. Use a spatula if needed to gently press the coffee through the strainer. If using a paper filter, be careful here as it can easily tear. You may need to double up.
- Discard the filter and coffee grounds in your compost bin or garden/flower beds and transfer the cold brew to a mason jar or glass carafe.
Storage:
- Store the cold brew coffee for up to three days in the refrigerator.
For an Iced Cold Brew Latte:
- Enjoy cold brew over ice. Cut it with water or milk of choice (I like homemade cashew) and sweeten it with maple or simple syrup (see notes to DIY) if desired to taste. See "elevate your cold brew" in the blog post for more ideas!
