Tip of the day...

are you sick of opening a 2 liter of pop, not finishing it and then having it go flat within a day or two? Well next time after opening it, just crush the bottle in order to the the level of pop as close to the top as you can. Pop goes flat because as there is more air space between the top of the sealed bottle and the pop the carbonation, which is a gas dissolved in a liquid, will escape until it's the same pressure in the air as it is in the liquid, which causes the flat pop. The smaller the amount of air between the pop and the cap of the bottle, the less gas that will escape leaving your pop carbonated for much longer periods of time!