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Rou Gui (Cassia Oolong)

Rou Gui (Cassia Oolong)

Oolong Tea

China — Wuyi, Fujian

Oxidation: heavy

Harvest: spring

25-40 mg/cup
🌡90-100 °C
1-1 min
🔄7 infusions

Tasting Profile

Aroma

Cinnamon-like spice with roasted warmth

Flavor

Spicy, cinnamon with roasted depth

Mouthfeel

Full-bodied, warming

Aftertaste

Warm, spicy, lingering cinnamon

Brewing Guide

Temperature

90-100°C

194-212°F

Steep Time

1-1 min

Leaf Amount

3g / 100ml

Max Infusions

7

About This Tea

From the renowned tea-growing region of Wuyi, Fujian in China comes Rou Gui (Cassia Oolong), a tea prized by connoisseurs and casual drinkers alike. The leaves are partially oxidized through a meticulous process of withering, bruising, and controlled oxidation that can range from light and floral to dark and roasted, a method that has been refined over centuries to capture the essence of the terroir in every cup. The specific microclimate of Wuyi, Fujian — its rainfall patterns, altitude, and soil composition — contributes to a flavor profile that cannot be truly replicated anywhere else in the world.

The sensory experience of Rou Gui (Cassia Oolong) begins with its aroma — cinnamon-like spice with roasted warmth. Upon tasting, one discovers spicy, cinnamon with roasted depth. This complexity of flavor makes Rou Gui (Cassia Oolong) a fascinating tea to explore, as each brewing reveals new nuances and subtleties that reward attentive drinkers. The tea is moderate in caffeine with 25-40 mg per cup, providing gentle alertness without the jitters, adding to its versatility as a daily companion.

Chinese tea culture, one of the oldest and most sophisticated in the world, has elevated tea preparation and appreciation to an art form spanning thousands of years.

Preparing Rou Gui (Cassia Oolong) requires attention to temperature and timing. Water at 90°C to 100°C brings out the best qualities of the leaf, while steeping for 30 to 1 seconds achieves the ideal balance of flavor and body. A ratio of 3.0g per 100ml of water is recommended. With up to 7 possible infusions, each cup provides a new opportunity to appreciate the nuances of this exceptional tea.

Today, Rou Gui (Cassia Oolong) continues to be celebrated both in its homeland and by tea enthusiasts around the world. Its unique flavor profile has earned it a devoted following among those who appreciate the art and science of fine tea. Whether enjoyed as a daily ritual or reserved for special occasions, Rou Gui (Cassia Oolong) represents a connection to centuries of tea tradition and the ongoing pursuit of excellence in every cup. The growing global interest in specialty teas has brought renewed attention to this variety, ensuring that the artisanal techniques behind its production continue to thrive.

Health Benefits

Contains a unique combination of catechins and theaflavins from partial oxidation
May support metabolism and healthy weight management
Provides sustained energy from moderate caffeine balanced with L-theanine
Rich in polyphenols that may support skin health
May help regulate blood sugar levels after meals

Caffeine Deep Dive

compared to coffee (95 mg)

Rou Gui (Cassia Oolong)33 mg
Coffee95 mg

Based on the FDA guideline of 400 mg/day, you can safely drink up to 12 cups per day.

Track your daily intake with the Caffeine Calculator →

Serving Suggestions

Pairs Well With

Roasted meatsAged cheeseDark chocolateDried fruits and nutsMoon cakes

Recommended Teaware

Yixing clay teapotGaiwan for gongfu brewingSmall tasting cups

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Nutrition Facts

Per 240ml serving
Calories2 kcal
Caffeine25-40 mg
L-Theanine8-16 mg
Polyphenols90-180 mg
EGCG (Catechins)8-20 mg
Protein0.3 g
Total Carbohydrates0.4 g
Total Fat0 g
Potassium20 mg
Magnesium3 mg
Calcium3 mg
Sodium1 mg

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Frequently Asked Questions

What does Rou Gui (Cassia Oolong) taste like?
Rou Gui (Cassia Oolong) has a Spicy, cinnamon with roasted depth taste with Cinnamon-like spice with roasted warmth aroma. The mouthfeel is Full-bodied, warming with Warm, spicy, lingering cinnamon aftertaste.
How much caffeine is in Rou Gui (Cassia Oolong)?
Rou Gui (Cassia Oolong) contains 25-40 mg of caffeine per cup.
What temperature should I brew Rou Gui (Cassia Oolong) at?
Brew Rou Gui (Cassia Oolong) at 90-100°C for 1-1 minutes.
What are the health benefits of Rou Gui (Cassia Oolong)?
Key health benefits of Rou Gui (Cassia Oolong) include: Contains a unique combination of catechins and theaflavins from partial oxidation, May support metabolism and healthy weight management, Provides sustained energy from moderate caffeine balanced with L-theanine.
What foods pair well with Rou Gui (Cassia Oolong)?
Rou Gui (Cassia Oolong) pairs well with: Roasted meats, Aged cheese, Dark chocolate, Dried fruits and nuts, Moon cakes.