If a fizzy drink was poured in zero gravity what will happen? What will happen if I pour some soda in zero gravity ? 
 A: NASA  have done some work on this and, from their website: NASA and Fizzy Drinks

The bubbles of carbon dioxide in carbonated beverages aren't buoyant in a weightless environment, so they remain randomly distributed throughout the fluid, even after swallowing. This means that carbonated beverages including soft drinks and beer may become a foamy mess during space travel.
  (Quote)  "Carbonated drinks currently don't make the trip because the carbonation and the soda will not separate in microgravity. Some experiments have been done with special microgravity dispensers for soda, but it has not been perfected yet."
  Even if a microgravity dispenser is perfected, there is no guarantee that carbonated beverages will be used in space. In space, with the absence of gravity, the carbon dioxide bubbles in carbonated beverages go through an astronaut's digestive system, rather than being belched out as on Earth, and may cause adverse side effects.

NASA is imo, being very polite here, a small space capsule, adverse side effects, not a good mixture, even in the ISS after a few drinks.
