How much caffeine is in Darjeeling Castleton Estate Second Flush?

Each 6–8 oz cup (180–240 ml) serving contains approximately 52 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 Darjeeling Castleton Estate Second Flush?

Target 90°C (194°F). Below this range the cup tends toward sourness and thinness from under-extraction; above it, bitterness rises faster than sweetness.

How long should Darjeeling Castleton Estate Second Flush be extracted?

Extract for 2.5–3 min using Teapot or Gaiwan, at a ratio of 2.5–3g per 200ml water, prepared at Whole Leaf. Time and ratio move together: a heavier dose generally wants a shorter contact time.

Why does my Darjeeling Castleton Estate Second Flush 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 Darjeeling Castleton Estate Second Flush?

Caffeine sensitivity: moderate caffeine content; avoid late-day consumption. Iron absorption: tannins can reduce iron bioavailability from plant sources. Pregnancy: cap at 200 mg/day caffeine per EFSA 2015 guidance. This is general educational information, not medical advice — consult a qualified healthcare professional about your own circumstances.

Reviewed Aug 2026

Orthodox Black Tea · Castleton, Darjeeling, India

Darjeeling Castleton Estate Second Flush

Name: How to Brew Darjeeling Castleton Estate Second Flush
Prep time: 3 min
Cook time: 3 min
Total time: 3 min
Yield: 6–8 oz cup (180–240 ml)
Cuisine: Castleton, Darjeeling, India
Ingredients: 5 g loose-leaf black tea; 100 g filtered water at 90°C

An iconic second-flush Darjeeling with intense muscatel character, deep amber liquor, and a lingering finish from the Castleton estate.

Castleton is one of Darjeeling’s most celebrated estates, known for producing some of the finest second-flush muscatel teas in the world.

Sensory profile

Comparative scale

sweetnessHigh

acidityHigh

bitternessModerate

bodyHigh

aromaVery high

You should taste

How it unfolds

Aroma → Palate → Finish

AromaBefore and as you sip

No distinct note recorded here — the aroma reads as pronounced rather than carrying a nameable character of its own.

pronounced aroma

PalateWhile it is in the mouth

clear sweetness

FinishAfter you swallow

clear body

Where it sits

Stronger than 189 of the 345 other drinks in the catalogue, and weaker than 146.

That is 52 mg in a 6–8 oz cup (180–240 ml) serving — a concentration of 24.8 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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Darjeeling Castleton Estate Second Flush

Sensory profile

You should taste

How it unfolds

Where it sits

What people say

Fellow Ode Brew Grinder Gen 2

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