METHOD AND DEVICE FOR SUBJECTING A FOOD PRODUCT TO A HEAT TREATMENT

摘要

The invention relates to a method and device for subjecting a packaged food product to a heat treatment, such as pasteurization, whereby the product is brought up to the treatment temperature by radiating it with microwaves and then cooling it down. The method is characterized in that the cooling process takes place in a conditioned gas environment and in that the package is hereby provided with an opening. The method provides for a packaged food product with an improved storage life.