Quick answer

Use 1 gram of loose leaf green tea blend per 100 ml of cold filtered water. Refrigerate for 8 to 12 hours, then strain. This ratio and time give a smooth, low-bitterness cold brew green tea. For iced green tea blends, serve over ice and adjust the ratio to 1.5 grams per 100 ml if you want a stronger flavor.

Why cold brewing works for green tea blends

Cold brewing extracts flavor slowly, so the tannins that make hot green tea bitter stay mostly in the leaves. That means you get a naturally sweet, refreshing cup without any astringency. Blends with mint, citrus, or fruit pieces work especially well because their aromatics are preserved in cold water. You do not need special equipment—just a jar, a strainer, and a refrigerator.

Choosing the right blend for cold brewing

Not all green tea blends cold brew the same. Blends with whole leaf green tea (like gunpowder or sencha) and added herbs or fruit tend to give the best results. Avoid blends with very fine particles or matcha, which can turn gritty and overly cloudy. If you are unsure, start with a blend that lists green tea as the first ingredient and includes natural flavorings or dried fruit. That combination usually cold brews into a balanced, flavorful drink.

Common mistakes to avoid

The biggest mistake is using too much tea. A little goes a long way in cold water. Another is leaving it in the fridge for more than 24 hours—after that, the flavor turns flat and can become bitter. Finally, do not skip filtering. Fine particles will keep extracting and make the tea cloudy and harsh. Always strain through a fine mesh sieve or a paper filter.

Step-by-step cold brew method

  1. Measure tea and water: Use 1 gram of loose leaf green tea blend per 100 ml of cold filtered water. For a 1-litre jar, that is 10 grams of tea. If you prefer a stronger brew, increase to 1.5 grams per 100 ml. Checkpoint: Weigh the tea if possible. Volume measures vary widely with leaf size.
  2. Combine and refrigerate: Add the tea to a clean jar, pour in the cold water, and stir gently. Cover and place in the refrigerator. Let it steep for 8 to 12 hours. Checkpoint: Do not leave it at room temperature. Cold is what prevents bitterness.
  3. Strain and serve: Pour the cold brew through a fine mesh sieve or a paper filter into another jar. Discard the spent leaves. Serve over ice. Store any leftovers in the fridge and drink within 3 days. Checkpoint: If the brew tastes weak, next time add more tea rather than steeping longer.

Two organic blends to try

  • Organic Marrakesh Mint: Organic Marrakesh Mint is a blend of Gunpowder green tea, whole peppermint, and natural peppermint flavouring. It is certified organic and has a peppermint taste. The whole peppermint leaves and gunpowder green tea cold brew into a crisp, minty drink that stays smooth over ice. The peppermint flavour holds up well in cold water.
  • Organic Limoncello Tea: Organic Limoncello Tea combines Sencha green tea, tulsi, lemon peels, mango pieces, star anise, lime oil, blackcurrant, and natural lemon and cranberry flavourings. It is certified organic and tastes of fruity lemon and lime. The mix of citrus and fruit pieces gives a bright, complex cold brew. The Sencha base is gentle enough that the fruit and herbs shine without turning bitter.