Why does my beer get warm and flat so quickly outside compared to inside?

Question

Why does my beer get warm and flat so quickly outside compared to inside?

Answer 1

The warmer the environment is the warmer the beer! As things get warmer they expand. WHen this happens it is easier for the CO2 trapped in the beer to escape to the outside air.

Answer 2

I would imagine the temperature and humidity outside is hotter and higher than inside.  Use a can cooler.

Answer 3

Inside may be cooler, but you also dont have the sun rays beaming on it.