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Mason Jar Cold Brew Coffee

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Discover the secret to bringing that beloved cafe-quality cold brew flavor right to your kitchen with this handy guide to making cold brew coffee in a mason jar. Say goodbye to long coffee shop queues and hello to smooth, sippable homemade goodness.

Dive into the world of chilled perfection with ease and enjoy every refreshing sip.

Let’s rave about Cold Brew some more, shall we? Cold brew is smooth, soothing, and full of surprises. It has floral notes, a pleasant taste, and low acidity that won’t upset your stomach.

But cold brew is not just for the morning. No, it’s the secret ingredient in cocktails such as homemade Black and White Russians! I also like to use it in creamy shakes, which will satisfy your sweet tooth like never before.

So, if I’ve whetted your appetite for cold brew and you’re ready, let’s get started and explore the delicious world of cold brew together. Believe me, you won’t regret it.

Ingredients you need

  • Water (800 ml / 27.05 fl oz) – cold, filtered
  • Coffee beans (80 g / 2.82 oz ) – coarse ground.
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How To Make Cold Brew Coffee in a Mason Jar

Step 1: Prep your water and coffee. Filter the water and grind your coffee to a coarse consistency.

Step 2: Set up your cold brew jar. Add the ground coffee to a filter inside the jar, then pour in the filtered water.

Insert the sieve into the mason jar.
Add the ground coffee.
Fill the jar with filtered water.

Step 3: Steep and chill. Seal the jar and let it steep in the fridge for 6 to 12 hours.

Close the lid of the mason jar before placing it into the fridge.

Step 4: Filter out the grounds. Remove the filter filled with wet coffee from the jar, allowing it to drain briefly before discarding.

Remove the sieve from the mason jar.

Step 5: Pour and savor. Transfer your freshly brewed cold brew into a glass filled with cubed ice, and enjoy the smooth, flavorful goodness.

Pour the finished cold brew coffee into your serving glass.
Pour the finished cold brew coffee into your serving glass.

Barista Tips

  • When brewing coffee, always use filtered water. Unfiltered water can calcify your brewing equipment and give your favorite coffee a funky taste. So opt for filtered whenever possible.
  • There isn’t a fixed ratio for cold brew, but a typical recommendation falls between 1 to 6 and 1 to 10. 
  • For optimal extraction, adjust the grind coarser as the brewing time extends. Cold brew requires an even coarser grind than French press to prevent over-extraction. Grind coffee just before brewing to preserve its aroma and flavor. For a Comandante grinder, set it between 35-40 clicks (70-80 red clicks).

Things to Add to Iced Coffee

Flavored Syrups

Vanilla, caramel, hazelnut or even chocolate syrup can add a delightful sweetness and flavor dimension to your coffee.

Homemade Lemon Ginger Syrup
This syrup is super easy to make and pairs perfectly with your cup of Joe! Try it out and you’ll love this tangy coffee additive
Check out this recipe
Preserving bottle filled with delicious lemon ginger syrup.
Brown Sugar Cinnamon Dolce Syrup
Add a touch of sweetness and warmth to your favorite beverages with our homemade cinnamon syrup. Made with brown sugar and cinnamon, this syrup is perfect for lattes, hot chocolate, and more!
Check out this recipe
Preserving bottle filled with delectable brown sugar cinnamon syrup placed in wooden basket filled with cinnamon sticks.
Iced Lavender Oat Milk Latte
Indulge in the refreshing and unique flavors of an iced lavender latte. Made with soothing lavender and creamy milk, this drink is a perfect summer treat.
Check out this recipe
Gorgeous glass filled with iced lavender latte on dark slate plate.


Sprinkle in some cinnamon, nutmeg, or even a dash of cardamom for a hint of warmth and complexity.

Iced Cinnamon Dolce Latte
Sweet and comforting iced cinnamon dolce latte, made with homemade cinnamon dolce syrup, milk, and espresso. Perfect for any occasion!
Check out this recipe
Gorgeous glass filled with iced cinnamon dolce latte. Placed on black slate plate.

Whipped Cream

A dollop of whipped cream on top can make your iced coffee feel extra indulgent.

Three Ingredient Espresso Whipped Cream
Make your coffee topping stand out with this delicious Espresso flavored whipped cream recipe that requires only three ingredients.
Check out this recipe
Gorgeous espresso whipped cream, topping an espresso and served in an medieval glass cup. The delicious texture also makes the espresso whipped cream a feast for the eyes!
Baileys Whipped Cream
Make your coffee topping stand out with this delicious Baileys flavored whipped cream recipe that requires only three ingredients.
Check out this recipe
Baileys Iced Coffee topped with scrumptious Baileys whipped cream.
Maple-flavored Whipped Cream
Make your whipped cream stand out with this cozy maple whipped cream recipe that requires only three ingredients.
Check out this recipe
Blue coffee mug with coffee and maple syrup whipped cream topping. A little overflowing.
Eggnog-flavored Whipped Cream
Make your whipped cream stand out with this festive eggnog whipped cream recipe that requires only three ingredients.
Check out this recipe
Gorgeous mediaeval coffee glass filled with black coffee, topped with eggnog flavored whipped cream. Placed on black slate plate next to a glass of eggnog.
Pumpkin Flavored Whipped Cream
Indulge in the delicious taste of pumpkin flavored whipped cream – the perfect topping for your fall coffee. Try it today!
Check out this recipe
Beautiful pumpkin flavored whipped cream piped on black coffee.

Ice Cream or Gelato

Add a scoop of vanilla or coffee-flavored ice cream or gelato for an extra creamy treat.

Flavored Creamers

Experiment with different flavored creamers like Irish cream, salted caramel creamer, or even pumpkin spice for seasonal flair.

Homemade Pumpkin Spice Coffee Creamer
Indulge in the delicious flavors of fall with this homemade pumpkin coffee creamer recipe. Add a touch of sweetness and warmth to your morning brew!
Check out this recipe
Gorgeous homemade pumpkin spice creamer in a bottle, placed on green felt next to small pumpkins.
Salted Caramel Coffee Creamer
Indulge in the rich and creamy flavor of salted caramel with our delicious coffee creamer. Add a touch of sweetness to your morning routine!
Check out this recipe
A bottle and a mason jar, filled with scrumptious homemade salted caramel coffee creamer. Placed on wooden board.
Christmas Creamer – 2 Versions
Elevate your coffee experience this holiday season with our homemade Christmas coffee creamer. Indulge in the festive flavors and savor every sip.
Check out this recipe
Delicious Christmas creamer in preserving bottle.
Basic Coffee Creamer
Want to elevate your coffee game? Learn how to make homemade creamer with this simple and delicious recipe. Say goodbye to store-bought creamer forever!
Check out this recipe
Coffee with coffee creamer in mason glass. Surrounded by containers filled with coffee creamer.

Milk Alternatives

Try using almond milk, coconut milk, oat milk, or soy milk for a dairy-free option with a unique flavor profile.

Recipe for Vanilla Iced Coffee
This scrumptious vanilla iced coffee is easy to make with natural ingredients and without any syrup. Homemade vanilla milk offers a delicious plant-based alternative with exceptional flavor. Remember to prepare the milk a day ahead.
Check out this recipe
Gorgeous glass filled with ice cold plant based vanilla iced coffee. Placed on black slate plate.

Flavored Extracts

Add a drop or two of flavored extracts like almond, coconut, or peppermint for a burst of flavor without added sweetness.


If you prefer your coffee sweeter, consider adding simple syrup, honey, maple syrup, or agave nectar.

Iced Honey Latte
Craving a refreshing and sweet pick-me-up? Try our irresistible iced honey latte, made with smooth espresso and a hint of natural honey. Perfect for sunny days!
Check out this recipe
Gorgeous glasses filled with iced honey latte placed on dark slate plate.
Iced Caramel Latte Recipe
Easy to make iced caramel latte with homemade caramel milk. Make this yummy treat with three ingredients only!
Check out this recipe
Tall, narrow coffee-filled glass, gets filled with ice-cold homemade caramel milk.

Cocoa Powder or Chocolate Shavings

Sprinkle some cocoa powder or chocolate shavings on top for a hint of chocolatey goodness.

Sea Salt

A pinch of sea salt can enhance the flavor of your coffee and balance out sweetness.


For a boozy twist, add a shot of your favorite liqueur like Baileys, Kahlua, or amaretto.

Iced Coffee with Baileys
Indulge in the perfect blend of coffee and Bailey’s, topped with a scrumptious Bailey’s whipped cream. Satisfy your cravings and chill out with this cold treat.
Check out this recipe
Scrumptious Baileys Salted Caramel Whipped Cream as a topping for a delicious Baileys Iced Coffee.
Iced Chocolate Almond Milk Shaken Espresso with a Twist
Create an awesome cocktail, made with Kahlua, almond milk, cocoa, and espresso. A simple and unexpected pleasure!
Check out this recipe
Cocktail glasses filled with delicious iced chocolate almondmilk shaken espresso. A delightful twist on a classic coffee recipe.

Flavored Ice Cubes

Freeze coffee into ice cubes or use flavored ice cubes like milk, coconut water, fruit juice, or even espresso for a refreshing twist.

Iced Coffee with Milk Ice Cubes
This simple recipe makes your iced coffee extra creamy and delicious. Made with frozen milk ice cubes! So gorgeous!
Check out this recipe
Gorgeous image of a high coffee glass, filled with iced coffee. The beautiful snowflake shaped milk ice cubes make this treat even more appealing.

Coconut Flakes

Toasted coconut flakes can add a tropical flair to your iced coffee.

Fruit Purees

Blend in some fresh fruit purees like strawberry, raspberry, or peach for a fruity kick.


Crushed or chopped nuts like almonds, pecans, or hazelnuts can add texture and flavor complexity to your drink.


Comandante Grinder in American Cherry – $360.00

from: Intelligentsia Coffee, Inc.

Frequently Asked Questions About Cold Brew in a Jar

How long does cold brew coffee last in the fridge?

For optimal quality, it’s recommended to enjoy cold brew within 7 to 10 days of brewing. Store it in an airtight container in the refrigerator to preserve its freshness.

Does cold brew go bad?

Yes, cold brew coffee can spoil if not stored correctly. It can develop off flavors and lose freshness if exposed to air or left unrefrigerated for too long.

Gorgeous glass filled with cubed ice and cold brew coffee. Placed on a black slate plate on white wooden ground.

More Recipes and Tips You Might Enjoy:

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Gorgeous glass filled with cubed ice and cold brew coffee. Placed on a black slate plate on white wooden ground.

Cold Brew Coffee in a Mason Jar

Transform your kitchen into a coffee haven with our Mason jar cold brew recipe! Discover the effortless way to craft smooth, flavorful coffee at home. You’ll only need filtered water, coffee, and a Cold Brew Mason Jar Coffee Maker. Let’s dive into the delicious world of homemade cold brew!
5 from 22 votes
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Course: Coffee, cold brew
Cuisine: Global cuisine
Keyword: coffee in a mason jar, cold brew, cold brew in a jar
Prep Time: 5 minutes
Steeping Time: 6 hours
Total Time: 6 hours 5 minutes
Servings: 4 servings


  • 27.05 fl oz Cold water filtered
  • 2.82 oz Coffee beans coarse ground


  • Filter 27.05 fl oz Cold water.
    27.05 fl oz Cold water
  • Weigh 2.82 oz Coffee beans and grind (coarse ground).
    2.82 oz Coffee beans
  • Place the cold brew jar on your coffee scale.
  • Add the ground coffee to the filter inserted in the mason jar and tare.
  • Pour in the filtered water.
  • Close the jar and place it into the fridge.
  • Let it steep between 6 and 12 hours.
  • Unscrew the lid and remove the filter filled with wet coffee from the jar.
  • Allow it to drain briefly before removing it completely from the Mason jar to avoid discarding too much cold brew.
  • Pour into a glass and enjoy.


Serving: 1serving | Sodium: 10mg | Calcium: 6mg
Tried this recipe?Let us know how it was!

Food Safety

  • Don’t leave food sitting out at room temperature for extended periods
  • Never leave cooking food and beverages unattended
  • Always have good ventilation when using a gas stove

See more guidelines at USDA.gov.

By on April 23rd, 2024
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About Nora

Nora is a full-blown coffee addict, who loves to make and write about everything that is coffee related. She is currently training to be a barista and loves sharing her knowledge.

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