| 摘要 |
A self-heating sachet comprises a first flexible-walled sachet (3) of liquid, e.g. water, and a second flexible-walled sachet (1) of exothermic reaction agent (5), e.g. Calcium Oxide. The second sachet is provided with a vent (7) arranged to open automatically, after mixing of the water with the Calcium Oxide, to allow water vapour, produced by the exothermic reaction of the Calcium Oxide with the water, to exit from the second sachet (1). The sachet may be associated with a foodstuff or beverage container to heat the foodstuff or beverage. |
