The amount of caffeine in a cup of coffee depends on the type of coffee and the way it was prepared. A 240ml cup of brewed coffee has 96mg of caffeine, whereas a 240ml cup of decaf brewed coffee only has 2mg.
What is Caffeine?
Caffeine is a stimulant found in coffee and it is the world’s most widely consumed psychoactive drug. It has various positive effects on the human body when consumed in moderation, but it can also lead to a few negative effects when consumed in large amounts.
Caffeine stimulates the brain and central nervous system, which ultimately keeps you alert and helps you to focus.
Fun Fact: Caffeine is also found in more than 60 plant species and acts as a natural pesticide against harmful insects.
Amounts of Caffeine in various Types of Coffee
As mentioned earlier, the amount of caffeine in coffee is dependent on the type of coffee. Let’s explore this in more detail…
A 240ml cup of brewed coffee has 96mg of caffeine.
Decaf Brewed Coffee
A 240ml cup of decaf brewed coffee has 2mg of caffeine.
A 30ml shot of espresso has 60mg of caffeine.
A 30ml shot of espresso has virtually no caffeine.
A 240ml cup of instant coffee has 62mg of caffeine.
Decaf Instant Coffee
A 240ml cup of decaf instant coffee has 2mg of caffeine.
Caffeine in Arabica Coffee and Robusta Coffee
Robusta coffee has a lot more caffeine when compared to Arabica coffee. The Robusta plant is known to be more resistant to harmful insects, and this is due to the amount of caffeine that acts as a natural repellent. Due to this, the plant’s cultivation process is less resource-intensive and therefore cheaper.
The Benefits of Caffeine
When caffeine is consumed in moderation, it can have various positive effects on the human body. Generally speaking, it is safe to consume up to 400mg of caffeine per day.
Caffeine has the following benefits:
- It keeps you alert and focussed
- It can help you burn fat
- It aids post-exercise recovery
- It can lower your chances of getting Parkinson’s Disease
- It can lower your chances of getting Alzheimer’s Disease
- It can lower your chances of getting Cancer
The Side Effects of Caffeine
While caffeine is generally safe to consume, individuals with an existing health condition need to be aware of their caffeine intake. When large amounts of caffeine are consumed, it can have the following side effects:
- Higher blood pressure
- Increased heart rate
- Raised cholesterol levels
Looking at the numbers above, a standard cup of brewed coffee has 96mg of caffeine. If you are conscious of your caffeine intake, take note of the type of coffee that you consume as well as the amount per day. It is generally safe to consume around 400mg, or 5 cups of coffee, per day. However, if you have an existing health condition you need to watch your caffeine intake or avoid drinking coffee altogether.