About This Blog

I'm Sofia Engström. I'm not a doctor or a researcher. I'm a UX designer based in Stockholm who spent switching from coffee to matcha and tracking what actually changed — and started writing down what actually changed.

Who I Am

I'm 34, living in Stockholm, and I work in UX designer. Screen-heavy days, irregular schedules, and the kind of low-grade fatigue that doesn't get flagged on a standard health check.

I don't have clinical credentials. What I do have is a detailed log going back several years, a habit of tracking one variable at a time, and a tolerance for reading research I don't fully understand on the first pass.

Why I Started This

I was drinking three cups of coffee a day and crashing badly by 2pm. A friend suggested matcha as an alternative. I was doubtful — I'd tried green tea before and found it underwhelming. Ceremonial-grade matcha turned out to be a different category entirely.

This blog is that log made public. It is not a research journal. It is a record of what I tested, what I noticed, and what the evidence says when you dig past the headline claims.

How I Track Things

My method is consistent rather than rigorous. I track focus quality (self-report 1–10), afternoon energy, sleep onset time, and anxiety markers. I introduce one change at a time and give it enough time before drawing conclusions.

• Same preparation method — I use the same grade, dose, and temperature each time to control variables
• One change at a time — if I switch grades or add adaptogens, I track them separately
• Focus and anxiety as primary signals — matcha's L-theanine effect is the main thing I'm measuring
• Minimum 3 weeks before conclusions — caffeine adaptation takes time

What You'll Find Here

Every post is grounded in my own experience and cross-referenced against peer-reviewed literature. I write in first person because these are my observations — not clinical conclusions.

• Grade differences — ceremonial vs culinary and what actually matters
• Preparation method — temperature, ratio, and tools that change the outcome
• Focus and calm energy — how L-theanine and caffeine interact in practice
• Mistakes I made — buying the wrong grade for six months was expensive and instructive

What This Blog Is Not

My Matcha Log is not a medical institution, a product company, or an academic publication. I am not a licensed healthcare professional. Nothing here is medical advice. Please read the Medical Disclaimer before acting on anything you find here.

— Sofia Engström, Stockholm