Cold Brew vs. Sun Tea: What's the Difference and Which Is Better?

When summer heat hits, nothing beats a tall glass of iced tea. But before you brew, you might wonder: should you make cold brew or sun tea? Both methods skip the kettle and rely on time to extract flavor, yet they produce noticeably different results. In this guide, we break down the differences between cold brew and sun tea, covering taste, safety, caffeine, and the best way to brew each.

Whether you're a tea newbie or a seasoned sipper, understanding these two methods helps you choose the right approach for your lifestyle. We'll also share our favorite cold brew tea products to get you started.

What Is Cold Brew Tea?

Cold brew tea involves steeping loose leaf tea or tea bags in cold water for an extended period, typically 8 to 12 hours in the refrigerator. The slow, cold extraction yields a smooth, naturally sweet tea with lower bitterness and acidity compared to hot-brewed tea that's been iced. Because cold water extracts flavor gently, cold brew tea is incredibly refreshing and perfect for sipping on a hot day.

You can cold brew almost any tea, from green and white to herbal and fruit blends. The method is forgiving: just add tea and cold water, refrigerate, and wait. No special equipment is required, though a cold brew pitcher or tea infuser makes the process easier. For a quick and convenient option, cold brew tea packets are designed for this exact purpose.

• Steep time: 8–12 hours in the fridge
• Flavor: smooth, sweet, low bitterness
• Caffeine: similar to hot brew, but extraction is slower

What Is Sun Tea?

Sun tea is made by placing tea in a clear glass jar filled with water and letting it sit in direct sunlight for several hours. The sun's heat gently warms the water, extracting flavor over 2 to 4 hours. The result is a mild, slightly different flavor profile compared to cold brew, often with a softer finish. Sun tea has a nostalgic appeal, evoking summer afternoons and porch sipping.

However, sun tea has some drawbacks. The warm, sunny conditions can promote bacterial growth if the tea is not consumed quickly or stored properly. Health experts often advise against sun tea because the temperature (between 40°F and 140°F) is in the 'danger zone' where bacteria thrive. For this reason, many tea lovers now prefer cold brew as a safer alternative.

• Steep time: 2–4 hours in direct sunlight
• Flavor: mild, sometimes slightly musty if left too long
• Safety: risk of bacterial growth if not handled properly

Cold Brew vs. Sun Tea: Key Differences

The main differences between cold brew and sun tea lie in temperature, brewing time, and safety. Cold brew uses consistently cold water in the fridge, which prevents bacterial growth and produces a cleaner, more consistent flavor. Sun tea relies on the sun's heat, which can fluctuate and may not reach a safe temperature to kill bacteria.

In terms of taste, cold brew tea is often described as smoother and sweeter, with more nuanced flavors. Sun tea can be slightly more bitter or dull, especially if over-steeped. Cold brew also gives you more control over strength and flavor, making it easier to replicate your favorite cup every time.

How to Make Cold Brew Tea at Home

Making cold brew tea at home is simple. Start with a ratio of about 1 teaspoon of loose leaf tea per 8 ounces of cold water. For tea bags, use one tea bag per cup. Add the tea to a pitcher or jar, pour in cold water, and refrigerate for 8 to 12 hours. Once steeped, strain the leaves or remove the bags, and enjoy. You can sweeten with honey or simple syrup if desired.

For the best results, use high-quality loose leaf tea or cold brew-specific packets. For example, our Strawberry Lemonade Cold Brew 2qt Pitcher Packs (10pack) are pre-measured for a perfect batch, and the Ginger Sweet Peach Cold Brew Tea Packets (10pack) offer a refreshing twist. These make cold brewing effortless.

• Use cold, filtered water for best flavor
• Steep in the fridge, not on the counter
• Experiment with steeping time to find your preferred strength

How to Make Sun Tea Safely (If You Must)

If you love the tradition of sun tea, you can still enjoy it with some precautions. Use a clean glass jar, fill it with cold water, and add tea bags. Place it in direct sunlight for no more than 2 to 4 hours, and bring it inside immediately. Refrigerate the tea and consume it within a few hours. To reduce bacterial risk, you can also start with boiling water to sterilize the jar and use bottled water.

However, many tea experts recommend skipping sun tea altogether and opting for cold brew instead. The flavor is superior, and you avoid the safety concerns entirely. If you're looking for a convenient cold brew option, our 20 Pack Cold Brew Variety - Wholesale offers a great assortment to try.

• Always refrigerate sun tea after brewing
• Discard any sun tea that smells or tastes off
• Consider cold brew as a safer, tastier alternative

Which Is Better: Cold Brew or Sun Tea?

For most people, cold brew is the better choice. It's safer, more consistent, and produces a smoother, more flavorful tea. Cold brew also allows you to use a wider range of teas, including delicate green and white teas, without worrying about bitterness. Sun tea, while nostalgic, carries unnecessary risks and often yields a less satisfying cup.

If you're ready to make the switch to cold brew, try our Chunky Watermelon - Sample or the Fruity Paradise Cold Brew 2qt Pitcher Packs (10pack) for a burst of fruity flavor. These products are designed to make cold brewing easy and delicious.

Ultimately, cold brew tea wins over sun tea in almost every category: flavor, safety, and convenience. By choosing cold brew, you can enjoy a refreshing, healthy iced tea without the worry. Explore our selection of cold brew tea packets and loose leaf teas to find your new favorite summer drink.