I’m the first to admit that sometimes I can be a little nerdy. Take the subject of this blog post for example. I have long wondered who has it right. The person who just closes the soda bottle for storage or the person who squeezes it tight before closing. Before you say “Of course the squeezing is better. It gives the CO2 less space to escape into.”, think about the fact that the bottle is trying to return to it’s original shape, thus potentially pulling the CO2 out of the liquid via a vacuum effect (told ya I was a little nerdy).
Soooo, I performed a little experiment to investigate just who is right.
Question: Should you squeeze the soda bottle to prevent CO2 from escaping the liquid?
Hypothesis: The smaller the volume of air available for the CO2 to escape into, the better.
I chose root beer for my experiment because it tends to have the largest amount of bubbles (head) when poured which makes it easy to see how much CO2 is left.
I started off by carefully pouring 1 cup of root beer out of two separate bottles into measuring cups. You can see in this photo how I closed the two bottles. One closed with no modification, the second squeezed until the soda was at the top of the bottle and sealed.
The Bottom Line:
The carbonation defiantly lasted longer in the soda that I squeezed before closing both in taste and looks. It would be my recommendation to squeeze the heck out of the bottle each time to increase the life of your soda. That being said, either way you do it, once you hit the two day mark neither method was able to preserve enough CO2 to keep the drink very bubbly tasting so drink up!
**Yes, I know that “bubbles” can not be tasted but you know what I mean. The fizzy feeling on your tongue you get from drinking carbonated drinks.