Pure caffeine is a soft, odorless, white and shiny powder.

The boiling point is 2 ° C and the melting point is 2 ° C.

The specific weight of caffeine is 1/2.

Its pH is 1/2. Its density is 1/2.

The main source of caffeine between different foods is coffee beans.

The content of caffeine in foods is highly variable.

In the 4th year of Ethiopia, there were trees found that had one in fifteen caffeine-containing plants.

These new plants are likely to be used in the near future to make coffee drinks that contain less caffeine.

A dose of caffeine is approximately 1 mg containing 2 ml of coffee drink or a caffeine tablet containing this amount of caffeine.

Various types of drugs that are sold with or without a prescription,

Like cough medicines, colds and pain contain caffeine.