How to Make Green Beer

Last updated on Jan 9, 2025
Jason Kurtz

St. Patrick’s Day is one of the biggest drinking holidays on the calendar, and serving green beer is a fun and festive way to shake up your menu and celebrate. You can feature it alongside Irish whiskey, Guinness, and various St. Patrick's Day foods. Green beer is traditional beer dyed green using food coloring or other natural ingredients. It is an easy-to-prepare, inexpensive option that will surely be a hit with your guests. Whether you just started a bar and are preparing for your first St. Patrick’s Day celebration or have been in the industry for years, adding green beer to your menu is a great way to attract customers and create a festive atmosphere. We’ve outlined how to make green beer and the different ingredients you can use to help you get started.

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Green Beer Recipe

Glass of Green Beer with pretzels scattered around

Follow the steps below to make green beer. The easiest way to make the drink is by preparing it directly in the beer glass rather than in bulk. Make sure you choose a type of beer glass that best fits your preferences and matches the theme of the day.

Makes: 1 green beer

Total time: 2 minutes

Green Beer Ingredients

  • 1 twelve ounce can of beer
  • 2 drops food coloring

Directions

  1. Add 2 drops of food coloring to the glass.
  2. Pour beer into the glass.
  3. Stir until beer and food coloring are completely mixed.
  4. (Optional) Repeat steps 2 and 3 until you reach your desired shade of green.

How to Make Green Beer Without Food Coloring

Glass of Green Beer with a green background

There are several natural ingredients you can use to achieve the right shade of green in your beer without using food coloring. It's important to note that depending on which ingredient you choose, it could slightly alter the taste of your beer. Consider the following options if you prefer a more natural green beer recipe:

  • Wheatgrass: Wheatgrass juice offers a grassy, earthy taste and imparts a light shade of green. To substitute food dye, use 1 tablespoon of wheatgrass juice in place of 2 drops of food coloring.
  • Spirulina: Spirulina powder provides a darker shade of green and has an earthy flavor profile. As a sea plant, some individuals also detect a hint of fishiness. To incorporate spirulina into your beer, prepare a combination of 1/2 teaspoon of spirulina powder with 3-5 tablespoons of your beer in a separate dish. Once mixed, add this blend to your glass and combine it with the rest of your beer.
  • Matcha: Matcha tea powder, known for its popularity in coffee and tea shops, offers a vegetal flavor with hints of sweetness and bitterness and a light green hue. To include matcha in your recipe, mix 1 teaspoon of matcha powder with 3-5 tablespoons of beer in a separate dish. Blend this mixture into your glass and combine it with the rest of your beer.

What Is the Best Beer for Green Beer?

The best beers for making green beer are pale ales, German pilsners, or any light Irish beer. These lighter beer options allow the green color to show more easily, reducing the amount of food dye or substitute ingredients you have to use. Dark beers, like porters or stouts, can be used, but the color will not be as vibrant.


Green beer is a St. Patrick's Day staple and an excellent addition to your beverage menu. If you plan on hosting a bar crawl or want to get into the holiday spirit, offering green beer will boost your customer experience. Whether you're preparing it with food dye or using natural ingredients, it adds a touch of creativity and color to your menu.

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