How to Cold Brew Iced Tea: Refreshing Recipes for Oolong and Black Tea

Quick Answer

To cold brew iced tea, steep 3 grams of loose leaf tea in 6 fluid ounces of cool water for 8 to 12 hours in the refrigerator, then strain. This method extracts flavor gently, producing a smooth, naturally sweet iced tea without bitterness. Try it with a lightly roasted oolong like Coconut Oolong or a fruity black tea like Mango Black Tea for refreshing variations.

Cold brewing is the easiest way to enjoy iced tea without the bitterness that hot steeping often brings. When you steep tea in cold water over several hours, the extraction is gentler, releasing sweet and floral notes while leaving behind bitter compounds. The result is a clean, refreshing drink that tastes great with a splash of lemon or a sprig of mint.

For oolong and black tea lovers, cold brewing highlights the natural character of the leaves. A lightly roasted oolong like Coconut Oolong gains a creamy coconut edge, while a black tea like Mango Black Tea becomes sweetly tropical. In this guide, we'll walk you through the cold brew method, share common mistakes to avoid, and give you a few recipe ideas to try at home.

What You Need to Start Cold Brewing

Cold brewing requires minimal equipment: a glass jar or pitcher, a reusable tea sachet or fine mesh strainer, and loose leaf tea. If you're using a tea sachet or a tea filter, you can add the tea directly to the water and remove it after steeping. If you're using a strainer, you'll need to strain the tea after the steeping time.

The ratio of tea to water is crucial. A good starting point is 3 grams of tea per 6 fluid ounces of water, which is roughly one teaspoon of loose leaf tea. For a stronger brew, increase the amount of tea slightly, but be careful not to overdo it – too much tea can make the final drink slightly astringent even with cold brewing.

• Use cool, filtered water for the best taste – tap water with a strong chlorine taste can affect the flavor.
• If you're using a tea sachet, consider cutting the sachet to allow more room for the leaves to expand, improving extraction.

Choosing the Right Tea for Cold Brewing

Oolong and black teas both cold brew well, but they have different flavor profiles. Lightly roasted oolongs, like Coconut Oolong from Anxi, China, bring a smooth, creamy coconut flavor that shines when cold brewed. The cocoa butter aroma from the coconut pairs beautifully with the tea's natural floral notes, making it a delightful summer beverage.

Black teas, such as Mango Black Tea from Yunnan, China, offer an earthy base that lets the mango and marigold flavors pop. Cold brewing black tea for 8 to 12 hours produces a naturally sweet, non-bitter iced tea that's perfect for sipping on a hot day. You can also experiment with other oolongs like Iron Goddess, known for its milky, floral flavor, to create a different cold brew experience.

• Try a flavored tea like Coconut Oolong for a tropical twist without added sugar.
• For a sweeter profile, use a black tea with fruit pieces like Mango Black Tea – cold brewing helps release the fruit's natural sugars.

Common Mistakes and How to Avoid Them

One common mistake is steeping for too long. While it's hard to over-steep with cold brewing, leaving the tea in for more than 12 hours can make it slightly bitter or too strong. Stick to the recommended 8 to 12 hours and taste test at the 8-hour mark to see if it's to your liking.

Another mistake is using too much tea. Unlike hot brewing, cold extraction is less efficient, so you might be tempted to add extra tea to speed things up. But remember the ratio – 3 grams per 6 fluid ounces works well. If you prefer a stronger brew, add a few extra leaves, but be ready to dilute with water or ice before serving.

Finally, don't forget to remove the tea leaves after the steeping time. Leaving the sachet or leaves in the pitcher will continue to extract, turning your smooth iced tea bitter. Strain immediately after steeping and refrigerate the finished tea.

5 Steps to Perfect Cold Brew Iced Tea

1. Measure your tea: Use 3 grams of loose leaf tea per 6 fluid ounces of cool, filtered water. For a 1-quart jar, that's about 16 grams of tea (roughly 5-6 teaspoons). Place the tea in a reusable sachet or directly in the jar if you'll strain later. Checkpoint: Adjust the amount slightly based on how strong you like your tea, but don't exceed 4 grams per 6 ounces to avoid bitterness.
2. Add cool water: Pour cool, filtered water over the tea. The temperature should be room temperature or colder – never hot. Stir gently to ensure all leaves are submerged, and close the jar with a lid. Mistake to avoid: Using warm water can make the tea extract too quickly and become bitter.
3. Refrigerate for 8 to 12 hours: Place the jar in the refrigerator and let it steep for at least 8 hours. For a stronger flavor, you can leave it up to 12 hours, but taste test at the 8-hour mark to see if it's ready. Checkpoint: If the tea tastes weak, let it steep for another hour or two, but don't exceed 12 hours.
4. Strain and remove the leaves: Once the steeping time is up, remove the tea sachet or strain the tea through a fine mesh strainer into a fresh pitcher or directly into glasses. This stops the extraction and keeps the tea clear. Mistake to avoid: Leaving the leaves in the pitcher will make the tea bitter and cloudy.
5. Serve and enjoy: Serve the cold brew over ice. Add a squeeze of lemon, a sprig of mint, or a slice of mango for extra flavor. Sweetener is optional – cold brewing often brings out natural sweetness. Enjoy within a day or two, as cold brew tea is best fresh. Store it in the refrigerator in a sealed container if not serving immediately.

Products That Work Well for Cold Brewing

• Coconut Oolong: A lightly roasted oolong blended with fragrant sun-dried coconut, offering a smooth balance of tropical flavors with a creamy finish. Aroma: Tropical, coconut, cocoa butter. Brewing: 185°F for 2 minutes, recommended 3g for 6 fl oz water. Ingredients: Oolong tea, dried coconut. The coconut flavor infuses beautifully in cold water, making it a sweet and cooling option for iced tea without any added sugar. Its creamy finish is a lovely contrast to the crispness of cold brewing.
• Mango Black Tea: A vibrant blend that pairs the ripe flavor of dried mangos with delicate marigold flowers, creating a refreshing balance between rich earthy undertones and sweet tropical notes. Brewing: 210°F for 2 minutes, then remove tea sachet. Ingredients: Black tea, dried mango, marigold flower. Cold brewing this black tea brings out the mango's natural sweetness, resulting in a fruity iced tea that's never bitter – perfect for a hot afternoon.

Cold brewing iced tea is a simple, forgiving method that yields a smooth and refreshing drink every time. With the right tea and a little patience, you can enjoy a non-bitter iced tea that's perfect for summer. Try it with Coconut Oolong for a tropical treat or Mango Black Tea for a fruity sip – your taste buds will thank you.