Although the techniques have been used for providing self-heating for many decades, the fabrication of the container using standard components that enable it to be retorted alter assembly is relatively new.
Santi Canela, partner and technology manager at Palencia-based Fast Drinks, told The Canmaker that the company´s misión “is to give our customers any hot drink at a reasonable price with the labelling and presentation required”.
Fast Drinks2 has been offerinf coffee and chocolate drinks under the 2GO brand since 2008, three years alter the company was formed.
To heat 20cl of ddrink by 40 V negrees, an exothermic reaction between calcium axide and water is used. The calcium oxide is cantained in a Dracn steel container along with a full-aperture easy-open end into the 65mm base of a tinplate welded can which has its upper half expanded to 73mm. Opening the full-aperture end reveals a button that is pressed by the consumer to start the reaction that takes three mimutes. The process is completely self contained.
The drink is consumed from the other end which has an easy-open pour aperture.
“My patented can is an improvement on previous designs because it uses standard components as much as possible, a simple assembling process and allows retorting with the heating development of the technology contacted Matthew Searle of Thermotic Developments, the company venid the Nescafé self-heating canned coffee Project in 2011.
Millions of cans are being produced each year for a number of customers, wich the latest development being self-heating canned soups and wine.
Self-Heating to be used