August 2026

Yes, conventional matcha powder naturally contains caffeine. Published samples vary, so calculate a serving from powder grams and product-specific data when available.

Starbucks matcha is a café drink ingredient made from shade-grown, milled green tea. See what the current U.S. menu confirms and what varies by drink.

Starbucks describes its current U.S. powder as matcha made from shade-grown, milled green tea, but does not publicly name a retail brand or supplier.

A cup of matcha may contain roughly 26–132 mg of caffeine when made with 1.5–3 g, using one published sample range. Calculate your drink by powder weight.

Matcha powder contains protein by dry weight, but a normal 1.5–3 g drink contributes much less than a 100 g nutrition table suggests. Learn how to calculate it.

Matcha can often fit within breastfeeding caffeine guidance, but total daily caffeine, powder strength and infant age matter. Review CDC and LactMed guidance.

A matcha latte has no single calorie count. Calculate it from the measured matcha, milk, sweetener and toppings, with worked examples for common cup sizes.

Start a matcha latte around 1.5–3 g, then calibrate by cup size, milk, ice and powder. Use this café-ready test method for repeatable recipes.

Matcha naturally contains L-theanine, but the amount varies. See what analytical studies establish, what labels cannot tell you, and when a test report is needed.

Matcha can leave a visible green mark on clothing, but it is not automatically permanent. Fabric, drink ingredients, time and care instructions determine the result.