Xyience Xenergy vs Starbucks cold brew (grande): which has more caffeine?

Starbucks cold brew (grande) has more caffeine than Xyience Xenergy: 205mg vs 176mg in the same 16 oz grande. That is a 29mg gap, and since the cans match, the per-serving number is the whole story.

These are different categories of drink, which changes how the caffeine arrives. Energy drinks and sodas list an exact number because caffeine is a measured additive; brewed drinks vary with the beans and the brew, so their figures are compiled averages. The numbers here are the standard published values for each.

Xyience Xenergy vs Starbucks cold brew (grande): the numbers

Sources: Xyience Xenergy's figure is verified in our Xyience Xenergy caffeine guide against Caffeine Informer (source); Starbucks cold brew (grande)'s figure is verified in our Starbucks cold brew (grande) guide against Starbucks menu data (source).

Which one should you pick?

Pick Xyience Xenergy when you want the lighter dose or a slower ramp, and Starbucks cold brew (grande) when you actually need the bigger hit and know your tolerance. If you are stacking either with other caffeinated drinks through the day, run the math against the 400mg reference rather than guessing.

For context, the FDA cites 400mg of caffeine a day as an amount generally not associated with negative effects in healthy adults. Tolerance and health vary, so treat these numbers as information, not advice.

Related reading

• Xyience Xenergy: the full caffeine guide
• Starbucks cold brew (grande): the full caffeine guide
• The verified caffeine database
• Every drink compared: the comparisons index
• Compare any two of 120+ drinks

FAQ

Does Xyience Xenergy or Starbucks cold brew (grande) have more caffeine? Starbucks cold brew (grande): 205mg per 16 oz grande versus 176mg per 16 oz can for Xyience Xenergy.

Which is stronger per ounce? Starbucks cold brew (grande), at about 12.8mg per fluid ounce versus 11.0mg for Xyience Xenergy.