Tag: Doubleshot caffeine

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How much caffeine does doubleshot coffee have?

Dec 7, 2025 •

4 min read

According to the Center for Science in the Public Interest, caffeine levels in coffee shop drinks can vary dramatically. So, just how much caffeine does doubleshot coffee have, and why is the answer more complicated than you might think?

Understanding the Numbers: How Much Caffeine is in Starbucks Canned Coffee?

Oct 21, 2025 •

3 min read

According to product facts, a 15-ounce can of Starbucks Doubleshot Energy contains 135 milligrams of caffeine. If you're wondering exactly how much caffeine is in Starbucks canned coffee across the company's ready-to-drink lineup, the answer varies significantly depending on the specific product and size.