Journals
Guides, brewing notes and research from O2H TEA — how to choose, brew and actually enjoy Asian teas, written for Australian drinkers. No ceremony, no gatekeeping, no jargon.
White Tea: Benefits, Caffeine & How to Brew
Quick answer: White tea is the least-processed of the true teas — young buds and leaves from Camellia sinensis that...
Jasmine Tea: Benefits, Caffeine & How to Brew
Quick answer: Jasmine tea is a scented tea made by layering Camellia sinensis leaves — almost always green tea —...
Tea for Focus and Concentration: L-Theanine + Caffeine Science (2026)
A note on health information: This article is for general information only and is not medical advice. ADHD is a...
Afternoon Tea for Energy: Beat the 3pm Crash Without Coffee
Quick answer: Afternoon tea for energy is a category of caffeinated drinks that combine 30–60 mg caffeine with L-theanine —...
Can You Drink Green Tea Before Bed? What You Need to Know
Quick answer: Green tea before bed is a low-risk choice for most people — provided you choose a low-caffeine variety...
Everything You Need to Know About Oolong Tea: Benefits, Brewing & Best Times to Drink
Quick answer: Oolong tea is a partially oxidised tea from Camellia sinensis — the same plant that gives us green...
