Medically the review by Adda Bjarnadottir, MS, RDN (Ice) — composed by Rachael Link, MS, RD ~ above October 10, 2019

Root beer is a rich and creamy soft drink generally consumed throughout north America.

You are watching: Is mug root beer caffeine free

While most people know that various other varieties that soda often contain caffeine, many are unsure about the caffeine content of source beer.

This have the right to be particularly problematic if you trying come limit her intake that caffeine or get rid of it from your diet.

This post investigates whether over there is caffeine in root beer and provides some simple ways to check.

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In general, most brands of source beer offered in phibìc America space caffeine-free.

Although the ingredients can vary based upon the particular brand and also product, most varieties of this well-known beverage save on computer carbonated water, sugar, food coloring, and also artificial flavors.

However, very few brands contain included caffeine.

Here space a couple of popular brand of source beer that don’t save on computer caffeine:

A&W source BeerDiet A&W source BeerMug source BeerDiet Mug source BeerDad’s root BeerDiet Dad’s source BeerBarq’s Diet source BeerSummary

Most popular brands of root beer sold in north America room caffeine-free.

Some varieties may save caffeine

Although source beer is usually caffeine-free, part varieties may contain a tiny amount.

In particular, the brand Barq’s is notable for that is caffeine content.

The regular variety contains around 22 mg in every 12-ounce (355-ml) can. However, the diet version consists of none (1).

For reference, a typical 8-ounce (240-ml) cup that coffee contains around 96 mg the caffeine, i beg your pardon is around 4 time the quantity in a deserve to of Barq’s (2).

Other caffeinated beverages, together as environment-friendly or black tea, are also greater in caffeine, regularly containing 28–48 mg every cup (240 ml) (3, 4).


Some specific brands may contain caffeine. For example, continuous Barq’s source beer has 22 mg in every 12-ounce (355-ml) serving.

How to inspect for caffeine

Foods the contain caffeine naturally, such as coffee, tea, and also chocolate, might not perform it directly on the brand (5).

However, foodstuffs that contain included caffeine, including details varieties of root beer, are required to perform it top top the ingredient label.

Keep in mind the the Food and Drug management (FDA) walk not call for manufacturers come disclose the precise amount of included caffeine in food assets (6).

Therefore, the best method to determine precisely how much a certain product contains is to check the product’s website or reach out to the manufacturer directly.


Foods and also beverages with added caffeine are required to list it on the ingredient label. To identify the specific amount a product has, inspect the brand’s website or reach the end to the manufacturer.

The bottom line

Most arrays of source beer offered in north America space caffeine-free.

However, specific brands, such as Barq’s, might contain a tiny amount of included caffeine in each serving.

See more: Philosophy Love Of Wisdom, Then How Do You, Philosophy, The Love Of Wisdom

If you trying to minimize your caffeine intake or reduced it out completely, be sure to inspect the ingredient label of her beverages carefully to recognize if castle contain included caffeine.

critical medically reviewed on October 10, 2019


Medically reviewed by Adda Bjarnadottir, MS, RDN (Ice) — created by Rachael Link, MS, RD ~ above October 10, 2019

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