Green Tea

I. General Information

A. Scientific Name:

Camellia sinensis

B. Alternative Names:

Ryokucha (Japanese), Lü Chá (Chinese), Nokcha (Korean)

C. Pronunciation:

/ɡriːn tiː/ (GREEN tee)

II. Sourcing and Origin

A. Source:

Dried and steamed leaves of the Camellia sinensis plant.

B. Geographic Origin:

China; now widely grown in Japan, India, and other Asian countries.

C. Method of Processing:

Leaves are quickly steamed or pan-heated to prevent oxidation, then rolled and dried.

III. Properties and Uses

A. Physical Properties:

Loose dried leaves (green to dark green), powdered matcha (vibrant green). Fresh, grassy, slightly astringent aroma.

B. Chemical Composition:

Rich in polyphenols (catechins, especially EGCG – epigallocatechin gallate).

Contains flavonoids and antioxidants.

Provides caffeine (less than coffee) and the amino acid L-theanine, which promotes relaxation.

Vitamins: C, B-complex, E.

Minerals: Manganese, potassium, zinc.

C. Primary Uses:

Skincare: Antioxidant-rich masks, anti-aging treatments, reduces puffiness and inflammation.

Haircare: Stimulates growth, reduces dandruff, strengthens strands.

Wellness: Boosts metabolism, supports weight management, enhances brain function, aids digestion, supports heart health.

Culinary: Consumed as tea, matcha in desserts, smoothies, and lattes.

Household: Used in DIY deodorizing sachets and natural cleaning blends.

D. Key Benefits:

Boosts energy, supports weight management, promotes healthy skin, reduces inflammation, protects against free radicals.

IV. Safety and Considerations

A. Potential Allergies:

Rare; excessive intake may cause stomach upset or caffeine sensitivity.

B. Best Practices for Use:

Consume in moderate amounts; use brewed or powdered tea topically in skincare.

C. Special Precautions:

Contains caffeine, may cause restlessness, insomnia, or rapid heartbeat if consumed in excess.

May interact with blood-thinning medications due to vitamin K content.

Concentrated extracts (supplements) can cause liver issues if overused.

V. Fun & Educational Facts

A. Historical Context:

Originated in China over 4,000 years ago; central to Japanese tea ceremonies.

B. Did You Know?

Green tea leaves are the same plant as black tea—the difference is in processing (oxidation).

C. DIY Recipe Idea:

Matcha Latte (matcha + milk/plant milk + honey)

Green Tea Face Mist (brewed tea cooled + spray bottle)

Green Tea Smoothie (banana + spinach + green tea + yogurt)