How Much Caffeine is in Sweet Tea? A Deeper look in this Popular Beverage

A glass cup filled with decaffeinated sweet tea sits on a light marble surface, the amber liquid topped with a half lemon slice on the rim.

Sweet tea caffeine ranges from 14 to 70 mg per 8 oz, mainly from black tea leaves.

Brewing time, tea type, and leaf amount affect caffeine levels; sugar does not.

Moderate caffeine can boost alertness but excess may cause anxiety or insomnia.

Decaf and herbal teas serve as caffeine-free alternatives.

Sweet tea contains a unique blend of sweetness and caffeine that has made it a beloved classic Southern drink. For those watching their caffeine intake, understanding the caffeine content in sweet tea is pretty essential for health reasons or just because you prefer to keep a lid on your caffeine consumption.

Staying on top of your food and drink intake to stick to your recommended daily caffeine limit is a wise idea if you're following the US FDA's guidelines for a healthy dose of caffeine.

This article takes a close look at the caffeine found in sweet tea, answering common questions and providing a clear rundown of what you need to know to make informed decisions about how much you drink.

How Much Caffeine is in Sweet Tea?

A standard 8-oz serving of sweet tea usually has anywhere from 14 to 70 milligrams of caffeine in it. Now, the caffeine content in sweet tea can depend on a few things, including the type of tea leaves that are used, the way it's brewed, the brand, and the size of the serving.

Sweet tea is typically brewed with black tea, which has naturally more caffeine than other types of tea. Popular brands like Pure Leaf and Gold Peak might vary in their caffeine content, so do take a look at their labels if you want to know for sure.

Compared to other beverages, sweet tea has less caffeine than a standard cup of coffee. That makes sweet tea a fairly moderate-caffeine choice for people who want to cut back on their caffeine intake.

What is Sweet Tea?

Two tall glasses of black sweet iced tea with mint leaves and ice sit beside a large glass pitcher

Sweet tea is traditionally made by brewing black tea leaves in hot water and then adding sugar while the tea is still warm. That's the basic idea behind this classic Southern drink - it's simple, yet pretty tasty. Especially during the summer.

Since sweet tea contains black tea, which does contain caffeine, you can expect to find some caffeine in it. But the amount will depend on the type of tea, the way it's brewed, and how strong you like your tea.

The combination of sweetness and a good strong tea flavor has made sweet tea a real favorite.

Factors Affecting Caffeine Levels in Sweet Tea

So, what makes the caffeine content in sweet tea vary so much? Well, it turns out there are a few key factors at play here.

Choosing the Right Tea Leaves

Four decaffeinated sweet tea cups—white decaffeinated sweet tea, green sweet tea, oolong sweet tea, and black sweet tea—are arranged in a neat row, each surrounded by its matching tea leaves

When it comes to sweet tea, the type of tea leaves you use is the biggest factor in determining the caffeine that ends up in the final drink.


  • Black Tea: This is the most common base for sweet tea and black tea leaves have the most caffeine - typically anywhere from 40 to 70 mg per 8-oz serving. That puts black tea-based sweet tea in the moderate-caffeine range, compared to coffee, for example.

  • Green Tea: Green tea leaves have lower caffeine content, averaging around 20 to 45 mg per 8-oz serving. So if you're looking for a milder caffeine kick, green tea based sweet tea might be the way to go.

  • Oolong Tea: Oolong tea's caffeine content falls somewhere in between black and green tea, with moderate levels of around 30 to 50 mg per 8-oz serving.

  • White Tea: White tea leaves have the least caffeine - usually between 15 to 30 mg per 8-oz serving - which makes it a good choice for people who are sensitive to caffeine.

Brewing Method

The way you brew your sweet tea can also affect the caffeine that ends up in the final drink. A longer brewing time in hot water will increase the caffeine content, while using cooler water or a shorter steeping time will result in a milder caffeine concentration.

Amount of Tea Leaves

Using more tea leaves per cup can not only make your sweet tea taste stronger but it can also increase the caffeine content. If you like a stronger brew, just be aware that it'll have more caffeine in it.

Sweetness Level

Now, here's the thing - adding sugar to your sweet tea doesn't affect its caffeine content at all. It just affects the way it tastes and the number of calories you're getting. 

But if you do like your sweet tea on the sweeter side, be aware that it might make the caffeine in it harder to notice.

Health Considerations of Caffeine in Sweet Tea

Caffeine in sweet tea can definitely affect your energy levels and how alert you feel. But as long as you're not overdoing it, a moderate amount of caffeine can be a good thing - it can help you focus and give you a bit of an energy boost.

On the other hand, too much caffeine can lead to some not-so-great side effects like anxiety, insomnia, and a rise in blood pressure. And if you've got health conditions or are pregnant, you'll want to be extra careful about the caffeine you're getting in your diet.

Compared to coffee or energy drinks, sweet tea generally has a lot less caffeine in it - usually around 15 to 30 mg per 8-oz serving. Coffee, on the other hand, can have up to 200 mg per serving.

So if you're watching your caffeine intake, it's a wise idea to keep track of how much you're getting in total. 

The FDA recommends a daily maximum of 400 mg of caffeine for most adults, with lower limits for pregnant women and people with certain health issues.

If you're looking to cut back on caffeine but still want to enjoy the taste of sweet tea, you might want to consider decaf options or blends that use green or oolong tea.

Decaffeinated Options

If you're a fan of sweet tea but want to avoid the caffeine altogether, there are some really good decaf options out there. 

Decaf sweet tea is made from tea leaves that have had most of their caffeine removed, so it's a great alternative for people who can't or don't want to have caffeine in their drinks.

When shopping for decaf sweet tea, do be sure to verify the labels to confirm the caffeine content - some products might still have a tiny bit of caffeine left in them. 

For home preparation, decaf tea bags or loose-leaf decaf tea work just as well as their caffeinated cousins, allowing you to get creative with brewing and sweetening to bring out the best in your sweet tea - with a caffeine content that's minuscule.

For a complete caffeine-free hit, herbal teas like chamomile or peppermint are a great option. You can brew them to your liking and adjust the sweetness to suit your taste.

Comparison with Other Caffeinated Beverages

A black iced tea with a lemon slice sits on a wooden table, its dark color and condensation catching soft natural light with sweet tea on its side

Understanding how sweet tea stacks up against other beverages is super helpful when it comes to managing your caffeine intake:


  • Coffee: An 8-ounce cup packs a whopping 95 mg of caffeine - that's a whole lot more than sweet tea.

  • Espresso: A solo shot of espresso contains around 63 mg of caffeine.

  • Soft Drinks (like Coca-Cola): A 12-ounce can has about 34 mg of caffeine - not far off from some sweet teas, but they're often loaded with artificial flavors and high fructose corn syrup.

  • Energy Drinks: The amount of caffeine varies wildly - from 70 mg to over 200 mg per serving - so be careful!

  • Other Teas: Green, oolong, white and herbal teas all have different caffeine levels - with herbal teas being virtually caffeine-free.

  • Decaf Sweet Tea: Typically contains a teensy 1 to 5 mg of caffeine per 8-ounce serving.

Beverage

Serving Size

Approximate Caffeine Content (mg)

Brewed Coffee

8 oz

95

Espresso (single shot)

1 oz

63

Sweet Tea (black tea)

8 oz

14 - 70

Coke (soft drink)

12 oz

34

Energy Drink

8 oz

70 - 200+

Green Tea

8 oz

20 - 45

Oolong Tea

8 oz

30 - 50

White Tea

8 oz

15 - 30

Decaffeinated Sweet Tea

8 oz

1 - 5

Note: Caffeine values are estimates - and can vary depending on the brand, brewing method and type of tea you use.

Sweet tea's got its own special something - it comes with naturally occurring antioxidants found in the tea leaves. These compounds have been studied for their potential general health benefits, though we've yet to establish any specific effects of sweet tea itself. 

Swapping to decaf or low-sugar versions is one way to give your sweet tea a healthier makeover - especially when compared to sugary sodas or energy drinks.

FAQs

Does Sweet Tea Have More Caffeine Than Iced Tea?

Sweet tea and iced tea usually contain similar levels of caffeine when brewed with the same type of tea and steeping time. Where they differ is that sweet tea is sweetened, while iced tea generally isn't.

How Many Calories Are in Sweet Tea?

The caloric content in sweet tea really depends on how much sugar you add in. A 16-ounce serving can easily contain 220 calories from around 55 grams of added sugar - though unsweetened versions have a lot fewer calories.

How Can I Reduce Caffeine in Sweet Tea?

If you want to dial down the caffeine, you could try using decaffeinated tea leaves, shortening the brewing time or brewing with cooler water. You could also opt for white or green tea leaves instead of black tea to reduce the caffeine content.

Conclusion

Getting a handle on the caffeine in sweet tea is super essential when making informed food choices. Sweet tea's got a relatively moderate caffeine level compared to coffee and energy drinks - providing a gentle pick-me-up for a lot of people.

Caffeine affects people differently - it can give you a boost, but can also keep you up all night if you have too much. Sticking to the FDA's daily caffeine limits and enjoy consuming sweet tea in moderation can be a big part of a balanced diet when you keep in mind the caffeine and sugar content.

Looking to discover some new sweet tea options - whether store-bought or homemade from tea bags and hot water? There's loads of varieties out there - black, green, oolong, white, and decaf - each with its own unique flavors and caffeine levels.

Disclaimer: The statements in this article haven't been reviewed by the FDA. It's for informational purposes only, and is not intended to treat, cure, prevent or diagnose any disease.

Behind the Cup

Man drinking cup of tea

Patrick R.

Patrick is a tea enthusiast who enjoys writing about tea and exploring its rich history, culture, and flavors. He contributes to Taste of Tea by sharing his thoughts, discoveries, and personal insights into the world of tea.

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