The stimulating effect of caffeine is one of the main reasons so many people enjoy a daily ... a standard cup of coffee can vary depending on factors such as the type of coffee beans, the brewing ...

Coffee is one of the world’s most popular beverages ... There are many ways to remove caffeine from coffee beans. Most of them include water, organic solvents, or carbon dioxide.

This process does not completely strip the beans of their caffeine content, however ... and fortunately most are entirely ...

One to four cups a day was the dose identified for ... globally] and Robusta [amounting to around 30 per cent of the world’s ...