Paulandstella, the self-heating baby bottle, works without power or batteries. It features an own temperature display and a heating module which can be re-used a lot of times. The module can be easily and uncomplicatedly recharged in a water-bath or steam sterilizer and can be used directly after cooling. The paulandstella baby bottle can be used with different wide neck bottle teats and sets for learning to drink. The heating module is activated by simply pushing a button on the bottom of the bottle and heats the fluid to the required and easily digestible temperature of 34 to 36 degrees. The current temperature is always displayed at the thermometer. Feeling or guessing it is not necessary any more. The baby milk keeps the temperature nearly constantly on the same level for the whole drinking period and up to about one hour.