Daily How Much

Most GT’s kombucha lands in the 8–14 mg caffeine range per serving, so a full bottle can add up based on how many servings it holds.

Most green coffee extract capsules land around 5–40 mg caffeine per serving, yet labels and extracts vary a lot.

Most true herbal teas are caffeine-free; any caffeine comes from added tea leaves, yerba mate, guarana, kola nut, cacao shell, or added caffeine.

Guarana seeds hold 2–8% caffeine by dry weight, so products can land around 20–80 mg of caffeine per gram depending on the form and dose.

Most half-caff coffee lands around 45–75 mg caffeine per 8 oz, depending on the decaf ratio, roast, dose, and brew style.

A typical 8-oz mug brewed from one green tea bag lands around 20–45 mg of caffeine, with steep time, water heat, and leaf grade shifting it.

A typical 2-tbsp (10 g) scoop of ground coffee holds 60–120 mg of caffeine, and your mug can land outside that range depending on beans, dose, and brew time.

A plain cup of brewed green tea often lands around 25–45 mg of caffeine, yet leaf style, water heat, and steep time can swing it.

A typical 8-oz mug of black tea lands near 45–50 mg of caffeine, while brewed green tea often sits near 25–35 mg.

An 8-oz cup of green tea often lands near 25–35 mg of caffeine, while brewed coffee often sits near 90–100 mg.