Caffeine

holding a mug of coffee and the caffeine calculator card

A Caffeine Calculator

In brief This caffeine calculator estimates caffeine in your cup using dose, green coffee caffeine % and brew method. The formula: Caffeine (mg) = 1000 × Dose (g) × Green...

A Caffeine Calculator

In brief This caffeine calculator estimates caffeine in your cup using dose, green coffee caffeine % and brew method. The formula: Caffeine (mg) = 1000 × Dose (g) × Green...

Gut Health and Caffeine

Gut Health and Caffeine

In brief Caffeine stimulates both the brain and the gut—speeding up digestion and sometimes triggering discomfort. For those with IBS or reflux, caffeine may worsen symptoms like cramps, urgency or...

Gut Health and Caffeine

In brief Caffeine stimulates both the brain and the gut—speeding up digestion and sometimes triggering discomfort. For those with IBS or reflux, caffeine may worsen symptoms like cramps, urgency or...

The Decaf Project

The Decaf Project

In brief The Decaf Project compared one Colombian coffee - the original and decaffeinated using CO₂, Ethyl Acetate, and Swiss Water methods. Led by James Hoffmann and Caravela Coffee, the...

The Decaf Project

In brief The Decaf Project compared one Colombian coffee - the original and decaffeinated using CO₂, Ethyl Acetate, and Swiss Water methods. Led by James Hoffmann and Caravela Coffee, the...

Bag of raw decaffeinated coffee

How is coffee decaffeinated?

In brief Decaf coffee retains most of the flavours and aromas of regular coffee, while reducing caffeine to about 10% or less of the caffeine content in a typical cup....

How is coffee decaffeinated?

In brief Decaf coffee retains most of the flavours and aromas of regular coffee, while reducing caffeine to about 10% or less of the caffeine content in a typical cup....

What is Low Caf Coffee?

What is Low Caf Coffee?

In brief Low caf coffees, are coffees with naturally low levels of caffeine. A common low caf coffee is the Arabica variety Laurina. Other low caf coffees include Aramosa, a...

What is Low Caf Coffee?

In brief Low caf coffees, are coffees with naturally low levels of caffeine. A common low caf coffee is the Arabica variety Laurina. Other low caf coffees include Aramosa, a...

coffee drinker in bed struggling to get to sleep

Caffeine and Sleep

In brief Caffeine effects sleep by attaching to adenosine receptors in the brain, preventing the neurotransmitter from signalling tiredness. Caffeine can also increase heart rate and body temperature - this...

Caffeine and Sleep

In brief Caffeine effects sleep by attaching to adenosine receptors in the brain, preventing the neurotransmitter from signalling tiredness. Caffeine can also increase heart rate and body temperature - this...