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A classic 12-oz serving of AriZona Green Tea has about 8–10 mg of caffeine, so the “Big Can” is still a light-caffeine drink.

A venti Starbucks Pink Drink has about 70 mg of caffeine, coming from green coffee extract in the Refresher base.

A typical tea bag yields about 25–55 mg of caffeine per 8-oz mug, with black tea running higher and green tea running lower.

An 8-oz cup of brewed coffee often lands around 80–100 mg of caffeine, with bean type and brew choices nudging it up or down.

A venti cold brew at Starbucks lands near 323 mg of caffeine in published nutrition tables.

A level teaspoon of coffee can land between 30–70 mg of caffeine, with instant at the low end and dark, dense grounds at the high end.

A 16-oz Thai tea often lands around 25–60 mg of caffeine, depending on the tea base, steep time, and how much tea is used.

One teaspoon of instant coffee usually lands near 30–60 mg of caffeine, depending on how level the spoon is and how the coffee is blended.

A venti coffee can land near 130–325 mg of caffeine, and the exact number hinges on the drink style, shots, and roast.

A level teaspoon of instant coffee powder usually lands around 30–60 mg of caffeine, with brand and spoon shape driving the swing.