A study from the Journal of Food and Chemical Toxicology determined that up to 400 mg of caffeine per day was safe for most.

A 2-ounce espresso cup will hold a single shot of espresso with room to spare or a double espresso that’s on the smaller end of the spectrum. If you routinely drink double espressos, it’s best ...

Coffee brewing techniques can also have differing effects on the caffeine in your cup, depending ... When you order an espresso, you're usually served a single or double shot, with each containing ...

Espresso cup FAQs The best espresso cups, or demitasses (French for "half-cups"), are small because espressos are small. A single shot ranges from about two-thirds of a fluid ounce (20 milliliters ...

Frothy drinks and simple cups of coffee are easy for even beginners ... we loved that making a latte only took a single minute and that a single espresso shot could be produced in only 20 seconds.

But if you bring an eight ounce cup of black tea into the conversation, a single shot of espresso will still be more potent with its caffeine kick.