Cold brew tea has become a refreshing alternative to traditional hot tea, offering smoother flavors and often higher caffeine content due to its extended steeping process.
Factors That Affect Caffeine Levels in Cold Brew Tea
The caffeine content in cold brew tea isn’t fixed—it depends on several brewing variables. Understanding these factors helps you control the strength of your tea and tailor it to your preferences.
- Tea Type – Black and yerba mate generally contain more caffeine than white or herbal teas.
- Leaf Quality – Whole leaves often release caffeine more slowly but steadily, while powdered teas like matcha deliver it instantly.
- Steeping Time – Longer steeping extracts more caffeine.
- Water Temperature – Slightly warmer cold brews (room temperature vs fridge) can increase caffeine extraction.
- Leaf-to-Water Ratio – More leaves per cup equals more caffeine.
By adjusting these variables, you can create a cold brew tea that’s either mellow and refreshing or highly energizing. This flexibility makes cold brew tea appealing to both casual drinkers and those seeking a strong caffeine boost.
15 Cold Brew Teas Ranked by Caffeine Content
Ranking teas by caffeine content provides a clear guide for those who want maximum energy. While exact milligrams vary, the following order reflects general caffeine strength.
Luzianne Unsweetened Cold Brew Black Iced Tea
With only 8 mg of caffeine per 8 oz serving, it’s one of the lowest‑caffeine cold brew teas available, making it perfect for those who want the taste of black tea without a strong stimulant effect.
Defining features of Luzianne Cold Brew Black Iced Tea:
- Low Caffeine – 8 mg per 8 oz ensures a gentle lift suitable for evenings.
- Smooth Flavor – Cold brew method reduces bitterness.
- Convenient Brewing – Specially designed bags steep easily in cold water.
- Unsweetened Option – Allows customization with sugar, honey, or lemon.
- Heritage Brand – Trusted in Southern households for generations.
This tea is ideal for drinkers who want a refreshing iced tea with minimal caffeine, offering flexibility to enjoy multiple servings without overstimulation.
Brisk Lemon Iced Tea
Brisk Lemon Iced Tea is a widely recognized ready‑to‑drink beverage that blends black tea with citrus flavor. At 11 mg of caffeine per 12 oz, it provides a mild energy boost while delivering a tangy, refreshing taste.
Defining features of Brisk Lemon Iced Tea:
- Moderate Caffeine – 11 mg per 12 oz gives a light lift without overstimulation.
- Citrus Flavor – Lemon adds brightness and balances sweetness.
- Ready‑to‑Drink – No brewing required, convenient packaging.
- Youth Appeal – Popular among younger consumers thanks to bold marketing.
- Affordable Option – Widely available at low cost.
Brisk Lemon Iced Tea is best for casual drinkers who want a flavorful beverage with just a touch of caffeine, making it versatile for everyday refreshment.
Liquid Death Iced Tea
Liquid Death Iced Tea is a modern brand known for its rebellious image and eco‑friendly packaging. With 19 mg of caffeine per 12 oz, it delivers a stronger kick than most mainstream iced teas while maintaining a smooth, drinkable profile.
Defining features of Liquid Death Iced Tea:
- Higher Caffeine – 19 mg per 12 oz provides noticeable stimulation compared to other iced teas.
- Unique Branding – Punk‑inspired design sets it apart from traditional teas.
- Sustainable Packaging – Aluminum cans promote recyclability.
- Flavor Options – Includes Armless Palmer, Rest in Peach, and more.
- Cult Following – Strong social media presence and loyal fanbase.
Liquid Death Iced Tea is perfect for those who want a bold, caffeinated drink that makes a statement, combining energy with lifestyle appeal.
Lipton Peach Iced Tea
Lipton Peach Iced Tea is a fruity twist on classic black tea, offering a refreshing balance of sweetness and caffeine. With 20 mg per 16.9 oz bottle, it provides a moderate energy boost while delivering a smooth peach flavor that appeals to a wide audience.
Defining features of Lipton Peach Iced Tea:
- Moderate Caffeine – 20 mg per 16.9 oz gives a steady lift without being overpowering.
- Peach Flavor – Adds natural sweetness and fruity aroma.
- Ready-to-Drink – Convenient bottled format for on-the-go refreshment.
- Global Brand – Lipton is trusted worldwide for quality tea products.
- Balanced Taste – Sweet yet light, ideal for casual tea drinkers.
This tea is perfect for those who want a flavorful beverage with a moderate caffeine kick, making it suitable for both daytime hydration and light energy support.
Southern Breeze Cold Brew Sweet Tea
Southern Breeze Cold Brew Sweet Tea is a pre-sweetened cold brew option designed for convenience and authentic Southern flavor. With caffeine ranging from 20–40 mg per 8 oz, it offers flexibility depending on steeping strength.
Defining features of Southern Breeze Cold Brew Sweet Tea:
- Variable Caffeine – 20–40 mg per 8 oz depending on steeping time and strength.
- Pre-Sweetened – No need to add sugar, ready to enjoy.
- Cold Brew Bags – Designed for easy steeping in cold water.
- Southern Flavor – Classic sweet tea taste with smooth finish.
- Low-Calorie Option – Sweetened without traditional sugar.
This tea is ideal for those who love sweet tea but want the convenience of cold brew and a customizable caffeine level.
Twinings Cold Brewed Iced Tea (Mint Flavored Green Tea with Peppermint Leaves)
Twinings Cold Brewed Iced Tea with mint and peppermint leaves combines refreshing herbal notes with the natural caffeine of green tea. With 25–47 mg per 8 oz, it delivers a stronger caffeine boost than many cold brews, while offering cooling mint flavor.
Defining features of Twinings Cold Brewed Mint Green Tea:
- Higher Caffeine – 25–47 mg per 8 oz provides noticeable stimulation.
- Mint Flavor – Peppermint adds cooling freshness.
- Green Tea Base – Offers antioxidants alongside caffeine.
- Cold Brew Design – Specially crafted for steeping in cold water.
- Trusted Brand – Twinings has centuries of tea expertise.
This tea is perfect for those who want a refreshing, energizing beverage that combines the health benefits of green tea with the invigorating taste of mint.
TEA CENTRAL Mango Green Tea
TEA CENTRAL Mango Green Tea blends the natural caffeine of green tea with tropical mango flavor. With 25–45 mg per 8 oz serving, it offers a moderate to strong caffeine boost depending on steeping strength.
Defining features of TEA CENTRAL Mango Green Tea:
- Moderate to Strong Caffeine – 25–45 mg per 8 oz depending on steeping time.
- Mango Flavor – Adds tropical sweetness and aroma.
- Green Tea Base – Provides antioxidants alongside caffeine.
- Cold Brew Friendly – Designed for smooth flavor extraction.
- Balanced Taste – Sweet yet energizing, ideal for warm weather.
This tea is perfect for drinkers who want a fruity, energizing beverage that combines health benefits with a refreshing twist.
Cane Brew Sweet Tea
Cane Brew Sweet Tea is a bold Southern-style tea sweetened with cane sugar. With 30–50 mg of caffeine per 8 oz, it delivers a stronger kick than many cold brews, making it a satisfying option for those who want both sweetness and energy.
Defining features of Cane Brew Sweet Tea:
- Strong Caffeine – 30–50 mg per 8 oz provides noticeable stimulation.
- Cane Sugar Sweetness – Distinct flavor compared to artificial sweeteners.
- Classic Southern Taste – Rich, bold, and refreshing.
- Cold Brew Method – Smooth extraction with reduced bitterness.
- Versatile Serving – Enjoyed plain or with lemon.
This tea is ideal for those who want a traditional sweet tea experience with a stronger caffeine boost, perfect for hot afternoons or social gatherings.
Spindrift Brewed Iced Tea
Spindrift Brewed Iced Tea is a clean-label beverage made with brewed tea and real fruit juice. With 30 mg of caffeine per 12 oz, it offers a moderate energy lift while emphasizing natural ingredients.
Defining features of Spindrift Brewed Iced Tea:
- Moderate Caffeine – 30 mg per 12 oz provides steady energy.
- Real Fruit Juice – Adds natural sweetness and flavor.
- Clean Ingredients – No artificial flavors or sweeteners.
- Ready-to-Drink – Convenient canned format.
- Health-Conscious Appeal – Popular among wellness-focused consumers.
This tea is perfect for those who want a refreshing, moderately caffeinated beverage that emphasizes natural ingredients and clean taste.
Twinings Peach Cold Brew Iced Tea
Twinings Peach Cold Brew Iced Tea combines the smoothness of cold‑steeped black tea with the sweetness of peach flavor. With 30–40 mg of caffeine per 8 oz, it offers a balanced energy lift that’s stronger than light iced teas but still approachable.
Defining features of Twinings Peach Cold Brew Iced Tea:
- Moderate Caffeine – 30–40 mg per 8 oz delivers a steady boost.
- Peach Flavor – Fruity sweetness enhances the tea’s smoothness.
- Cold Brew Design – Crafted for reduced bitterness and clean taste.
- Trusted Brand – Twinings is known worldwide for premium teas.
- Refreshing Profile – Ideal for warm weather hydration.
This tea is perfect for those who want a flavorful, moderately caffeinated drink that balances tradition with fruity refreshment.
HTeaO Mint Black Tea
HTeaO Mint Black Tea is a bold cold brew option that blends robust black tea with cooling mint. With 40–50 mg of caffeine per 8 oz, it provides a noticeable energy boost while refreshing the palate. Known for its specialty iced tea shops, HTeaO emphasizes strong flavors and high‑quality brewing.
Defining features of HTeaO Mint Black Tea:
- Strong Caffeine – 40–50 mg per 8 oz offers a solid stimulant effect.
- Mint Flavor – Cooling notes balance the boldness of black tea.
- Premium Brewing – Designed for smooth cold extraction.
- Specialty Appeal – Popular in HTeaO’s iced tea bars.
- Refreshing Kick – Energizing yet cooling, ideal for summer.
This tea is best for those who want a strong caffeine boost paired with refreshing mint, making it both energizing and invigorating.
Southern Sweet Tea Co. Real Brewed Iced Tea
Southern Sweet Tea Co. Real Brewed Iced Tea delivers authentic Southern flavor with a balanced caffeine profile. At 41–42 mg per 16 oz, it provides a moderate lift while emphasizing sweetness and tradition.
Defining features of Southern Sweet Tea Co. Real Brewed Iced Tea:
- Moderate Caffeine – 41–42 mg per 16 oz ensures steady energy.
- Authentic Flavor – Brewed with real tea leaves for genuine taste.
- Sweetened Profile – Classic Southern sweetness appeals to tradition.
- Larger Serving – 16 oz size offers more refreshment per bottle.
- Cultural Heritage – Embodies the tradition of Southern sweet tea.
This tea is ideal for those who want a larger serving of authentic sweet tea with a moderate caffeine boost, perfect for social gatherings or hot afternoons.
Lipton Cold Brew Black Tea
Lipton Cold Brew Black Tea is one of the stronger mainstream cold brew options, offering a bold flavor and a noticeable caffeine lift. With 47–55 mg per 8 oz serving, it rivals the strength of a small cup of coffee, making it ideal for those who want a chilled tea with real energy.
Defining features of Lipton Cold Brew Black Tea:
- High Caffeine – 47–55 mg per 8 oz provides a strong energy boost.
- Bold Flavor – Classic black tea taste with smooth cold brew extraction.
- Convenient Bags – Specially designed for cold water steeping.
- Global Brand – Lipton is trusted worldwide for quality tea products.
- Versatile Serving – Enjoy plain or with lemon, sugar, or honey.
This tea is perfect for those who want a reliable, high‑caffeine cold brew that balances strength with smoothness.
Tejava Unsweetened Peach Iced Tea
Tejava Unsweetened Peach Iced Tea is a premium bottled tea known for its clean taste and lack of added sweeteners. With 50 mg of caffeine per 12 oz, it delivers a solid energy boost while highlighting natural peach flavor.
Defining features of Tejava Unsweetened Peach Iced Tea:
- Strong Caffeine – 50 mg per 12 oz offers a noticeable lift.
- Unsweetened Profile – No added sugar, just pure tea and peach flavor.
- Premium Quality – Made with handpicked tea leaves.
- Peach Infusion – Adds fruity aroma and taste.
- Health Appeal – Popular among wellness‑focused consumers.
This tea is ideal for those who want a naturally flavored, sugar‑free iced tea that still delivers a strong caffeine kick.
Athena’s Glow Tea
Athena’s Glow Tea is a high‑caffeine specialty blend designed for maximum energy. With 100–110 mg per 8 oz serving, it surpasses most teas and even rivals coffee in strength.
Defining features of Athena’s Glow Tea:
- Very High Caffeine – 100–110 mg per 8 oz delivers coffee‑level stimulation.
- Functional Blend – Crafted for energy and focus.
- Bold Flavor – Strong taste that matches its caffeine punch.
- Specialty Appeal – Positioned as a premium energizing tea.
- Performance Focus – Ideal for those needing sustained alertness.
This tea is best suited for individuals who want maximum energy from a cold brew tea, making it a powerhouse option for busy days or demanding tasks.
Cold Brew Tea vs Hot Brew Tea: Which Has More Caffeine?
The debate between cold brew and hot brew tea centers on caffeine extraction. While hot water extracts caffeine quickly, cold brewing allows for longer steeping, which can sometimes result in equal or higher caffeine levels.
- Hot Brew Tea – Rapid extraction, strong flavor, but shorter steeping time.
- Cold Brew Tea – Slow extraction, smoother taste, often higher caffeine if steeped long enough.
- Flavor Differences – Cold brew is less bitter, hot brew is more robust.
- Health Benefits – Cold brew may retain more antioxidants due to gentler steeping.
Ultimately, cold brew tea can rival or surpass hot brew in caffeine content, especially when steeped overnight. The choice depends on whether you prefer a quick, hot drink or a smoother, chilled option.
Black Tea, Green Tea, and Yerba Mate: Which Is Strongest?
Among the most popular cold brew options, black tea, green tea, and yerba mate stand out for their caffeine levels. Each offers unique benefits and energy profiles.
- Black Tea – Strong, bold, and widely available.
- Green Tea – Moderate caffeine with antioxidants.
- Yerba Mate – Highest caffeine, often compared to coffee.
Yerba mate typically delivers the strongest caffeine kick, followed by black tea, while green tea provides a gentler lift. Choosing between them depends on whether you want maximum energy, balanced stimulation, or antioxidant-rich refreshment.