An RFID chip is modified with set data before being disposed in an electronic label so as to allow the electronic label to be selectively used with different types of RFID systems. The anti-spill and self-venting features are achieved by establishing an airway from the top of the spout and extending into the container in the form of a flexible tube. The shape of the plenum and the disposition of the combustion fuel injectors are such that a vortex flow 2 is established in the combustion chamber in use. The first ion mill may be 0-30 degrees with respect to normal, whereas the second ion mill can be 50-89 degrees with respect to normal.