How much caffeine is in Oolong Kombucha Fermented Tea?

Each 8 oz cup (240ml) serving contains approximately 18 mg of caffeine. For comparison, a standard 8 oz cup of brewed drip coffee contains around 95 mg. Actual content varies with dose, water temperature, and contact time.

What temperature should I use for Oolong Kombucha Fermented Tea?

Target 95°C (203°F). Below this range the cup tends toward sourness and thinness from under-extraction; above it, bitterness rises faster than sweetness.

How long should Oolong Kombucha Fermented Tea be extracted?

Extract for 0:30-3:00 depending on infusion style using Glass Jar Fermentation, at a ratio of 10g leaves per Liter of water, prepared at Compressed Leaf or Whole Leaf. Time and ratio move together: a heavier dose generally wants a shorter contact time.

Why does my Oolong Kombucha Fermented Tea taste bitter?

Bitterness almost always indicates over-extraction. Shorten the contact time, lower the water temperature slightly, or use less leaf. Change one variable at a time so you can tell which one was responsible.

Who should avoid Oolong Kombucha Fermented Tea?

Fermentation, acidity, trace alcohol, and caffeine vary by product and preparation. Use individualized guidance for pregnancy, medication interactions, allergies, reflux, or other health concerns. This is general educational information, not medical advice — consult a qualified healthcare professional about your own circumstances.

Reviewed Aug 2026

Fermented Specialty · Pacific Northwest Fermentation Tradition

Oolong Kombucha Fermented Tea

Name: How to Brew Oolong Kombucha Fermented Tea
Prep time: 3 min
Cook time: 2 min
Total time: 2 min
Yield: 8 oz cup (240ml)
Cuisine: Pacific Northwest Fermentation Tradition
Ingredients: 2.4 g loose-leaf oolong; 240 g filtered water; Sugar for the culture, per your base recipe; Active starter liquid from a previous batch

Floral oolong, light acidity, and a sparkling tea finish.

A cultured tea beverage pairing oolong aroma with lactic and acetic fermentation character.

Sensory profile

Comparative scale

sweetnessHigh

acidityModerate

bitternessVery low

bodyModerate

aromaVery high

You should taste

How it unfolds

Aroma → Palate → Finish

AromaBefore and as you sip

Orchid

pronounced aroma

PalateWhile it is in the mouth

Honey

clear sweetness

FinishAfter you swallow

moderate body

Where it sits

Stronger than 56 of the 345 other drinks in the catalogue, and weaker than 288.

That is 18 mg in a 8 oz cup (240ml) serving — a concentration of 7.5 mg per 100 ml. The scale above ranks whole servings, and servings differ in size, so a larger drink can sit further right while being weaker cup for cup.

CupCura editorial estimate. No public food database has measured this preparation, so this figure is our own and is not independently sourced.

What people say

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Gear for this drink

Fellow Ode Brew Grinder Gen 2

Direct-drive motor with 64mm stainless steel flat burrs engineered specifically for pour-over, drip, and cold brew clarity.

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Oolong Kombucha Fermented Tea

Sensory profile

You should taste

How it unfolds

Where it sits

What people say

Fellow Ode Brew Grinder Gen 2

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