Findings in a new paper show that it made a "dramatic difference" to the quality of coffee.
Britain's obsession with coffee recently prompted the consumer organisation Which?, to release a report about the quality of coffee shops.
There is also a growing environmental backlash against its "K-Cup" coffee pods, and scepticism about the quality of coffee produced by its machines.
There are ads for Guatemalan coffee, and later, in a short feature, John McAfee is quoted praising the quality of coffee in Guatemalan prison.
Modern packaging materials, plastic films such as polyethylene and complexes of aluminum and cellulose, are capable of conserving the quality of coffee for a time.
Buy now Verdict: For the quality of coffee and the sleek style of the machine, we'd go for the Francis Francis X7.1 (using illy iperEspresso capsules).
"Really approachable staff, the highest quality of coffee with the least pretence imaginable and they are repeatedly awarded the best café in the city.
There, a rigorous round of quality control begins, with every 60kg bag of coffee tested for conformity of physical and sensorial properties, the degree of humidity and the quality of coffee beans delivered.
"The quality of coffee can be completely destroyed if it is harvested before it is ripe or when it is overripe," says Alexis Rodriguez, green coffee quality and development manager for Nespresso.
These are the words of Steven Macatonia, co-founder of Union Hand-Roasted Coffee, who said that changing weather patterns such as erratic rainfall, increased temperatures, and more pests and disease are having a negative effect on the volume and quality of coffee produced.
