How to Make Hard Seltzer

Last updated on Apr 23, 2025
Corrinn McCauley

Hard seltzer has become a popular bar trend among consumers looking for a refreshing and low-calorie alternative to traditional alcoholic beverages. Made with a simple combination of water, alcohol, and flavoring, hard seltzer offers a customizable and easy-to-make option for commercial establishments looking to expand their beverage offerings. We'll explore how to make hard seltzer the easy way, providing insights into the process and ingredients needed to create this trendy beverage.

Hard Seltzer Recipe (The Easy Way)

At the commercial level, hard seltzer is typically made through a prolonged fermentation process that is generally reserved for large-scale production. We’ve simplified the hard seltzer-making process so your business can tap into the profitable hard seltzer market without expensive equipment or labor-intensive steps. Watch this video to learn how to make your own housemade hard seltzer the easy way and increase profits at your bar.


Hard Seltzer Ingredients

  • 12 fluid ounces seltzer, soda water, or club soda
  • 1.5 fluid ounces 40-proof clear liquor (vodka, white rum, or tequila)
  • 1-2 drops flavored extracts
  • .25 fluid ounce fruit juice
  • Pinch of citric acid powder
  • Cocktail bitters to taste (optional)

Directions

  1. Pour seltzer water, club soda, or soda water from soda gun into glass.
  2. Add liquor to seltzer.
  3. Add 1-2 drops of flavored extract, followed by fruit juice and citric acid powder.
  4. Add cocktail bitters if desired and serve.

What Is Hard Seltzer?

raspberry and orange peel floating in seltzer

At its core, hard seltzer is a carbonated alcoholic beverage that typically combines sparkling water, alcohol, and natural flavors. It is known for its light and crisp taste, making it a favorite among those seeking a lighter alternative to traditional beer or cocktails.

One of the key selling points of hard seltzer is its low calorie (usually 100 calories) and low sugar content, making it an appealing choice for health-conscious individuals. The alcohol content of hard seltzer can vary, but it generally falls in the range of 4-6% ABV, similar to many beers. Hard seltzer is often gluten-free and available in a wide range of flavor options, from classic lime and lemon to more adventurous combinations like watermelon mint or peach ginger.

How Hard Seltzer Is Made (The Traditional Way)

Most canned varieties of hard seltzer are produced by fermenting cane sugar and then adding carbonation and flavors. Unlike the simple vodka soda, brewing hard seltzer is as complex as creating craft beer with the additional challenges of filtering water to achieve clarity, carbonating, and aroma stripping to remove strong acid and sulfur flavors. On average, from-scratch hard seltzers undergo five filtration steps and a flavoring process before they are ready to serve. However, you can update the classic vodka soda recipe to dupe brewed varieties of hard seltzer.

What Kind of Alcohol Is in Hard Seltzer?

Most popular hard seltzer brands do not contain liquor. Usually, the alcohol found in hard seltzer is produced by fermenting cane sugar. Unfermented varieties of hard seltzer require a 40-proof liquor. Vodka is a versatile option. White rum and tequila are alternative choices for enticing those who don’t favor vodka.

Benefits of Making Your Own Hard Seltzer

3 glasses of hard seltzer on an outdoor bar surface with various fruit garnishes

You can turn a major profit by making your own hard seltzer with the ingredients already stocked in your restaurant or bar. Here are the top benefits of making your own hard seltzer.

  1. Cost-Effective: Making your own hard seltzer with the ingredients you have on hand (ex. the soda water from your soda gun) is far more cost-effective than stocking up on cans of hard seltzer.
  2. Customizable Flavors: Offer customers a list of customizable hard seltzer flavor combinations. Not only will customers enjoy designing their own hard seltzer, but you can also upcharge for this experience.
  3. Simplify Inventory Management: Eliminate the guesswork of estimating how much hard seltzer you need to stock and avoid running out of supplies by making your own.

Hard Seltzer vs Beer

can of White Claw black cherry hard seltzer laying in ice beside a bottle of Corona beer

Hard seltzer, a popular alcoholic beverage made from carbonated water, alcohol, and flavoring, has gained immense popularity as a lighter, low-calorie alternative to traditional beer. Its clean, crisp taste and refreshing nature make it a favorite among consumers looking for a lighter, more sessionable option. Beer, a fermented beverage made from malted barley, hops, yeast, and water, offers a wide range of flavors, styles, and alcohol content. From light lagers to hoppy IPAs and rich stouts, different types of beer appeal to a diverse range of palates and preferences.

A key difference between hard seltzer and beer is the calorie content. Hard seltzers typically have fewer calories and carbohydrates compared to most beers, making them a popular choice for health-conscious consumers. The alcohol content of hard seltzer is usually lower than that of beer, making it a more suitable option for those looking to enjoy a few drinks without the higher alcohol content of beer.

Hard Seltzer and Beer Similarities

  • Undergo a fermentation process
  • Low ABV
  • Cheaper than cocktails/liquors
  • Carbonated

Hard Seltzer and Beer Differences

  • Hard seltzer is lower in calories than beer.
  • Beer possesses a strong flavor profile, whereas hard seltzers offer just a hint of flavor.
  • Beer contains gluten, and hard seltzer typically does not.
  • While both hard seltzer and beer are carbonated, carbonation is the defining feature of hard seltzer whereas beer is only slightly carbonated.

What Is Seltzer Beer?

Seltzer beer is a form of hard seltzer that uses malted barley rather than fermented cane sugar. Its appeal isn’t as universal as fermented cane sugar hard seltzer options because it is not gluten-free. Additionally, many seltzer beers contain more added sugars than their fermented cane sugar counterparts, increasing their calorie count and losing their target audience, which primarily chooses hard seltzer drinks as a calorie-conscious alternative. If they’re going to indulge in a higher calorie option, most customers would rather have a good craft brew than a seltzer beer.


In-house hard seltzers can be customized and upcharged while remaining very inexpensive to produce. We've crafted a hard seltzer recipe that uses ingredients you already have on hand. Use our recipe as the baseline for your own signature hard seltzer and watch your profits soar.

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