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5 from 3 votes

DIY Cold Brew Coffee Bags

Easy DIY Cold Brew Coffee Bags come together in minutes, and costs just a fraction of the store bought version!  Get some brewing in your fridge today!
Prep Time5 mins
Brewing Time2 d
Course: Beverage
Cuisine: American
Keyword: coffee, cold brew, diy
Servings: 1 person


  • paper coffee filters
  • rubber bands
  • coffee grounds (2 Tablespoons for every serving)
  • water (1 Tablespoon for each coffee bag, plus 12 ounces for each jar)
  • 16 ounce mason jars


  • In a small bowl scoop out about 2 Tablespoons of coffee grounds for every cup you'd like to make.
  • Add 1 Tablespoon of water for every 2 Tablespoons of coffee grounds.
  • Mix well and allow coffee to "bloom."
  • Divide into coffee filters, with 2 Tablespoons of grounds in each.
  • Gather up outer edges of filter and twist rubber band around filter to seal.  
  • Place each coffee bag in a separate mason jar.
  • Add about 12 ounces of water to each jar.
  • Place jars in the fridge and allow to brew for 48 hours.  
  • Remove jars from fridge, and remove coffee bags from jars, giving a very gentle squeeze to remove excess coffee.
  • Add ice, creamer and sweetener as desired, and serve!