As someone who has worked with beer professionally, I am very curious as to how this worked.
The most likely answer is that the keg is just a fancy beer bottle cooler and like the schnapps the beers were poured. Having an actual draught beer installation at altitude is a bit complicated due to the pressure of air. In a draught beer the pressure and temperature need to be steady. But on an airplane the pressure is not.
You can experiment on this by cumpling up a pet bottle whilst at the airport. When you get to cruising altitude it will have expanded due to the lowering ambient pressure.
But seeing the hand of the stewardess the top is basically a lid all other functionality is not shown (no bottles in the frame) So it’s meant to evoke a draught beer situation… They have put in effort thought of making those glasses looked like draught beer. They might even have been for the commercial. Carbonated beverages on planes lose their carbonation way more quickly due to the pressure difference.
Edit:
The schanpps is called schinkenhager, which means Skinny or light Ham. In this pariring that is funny.
A problem is a big word. Technically a draught beer system could be engineered that takes account of air pressure and controls the CO2 pressure accordingly.
But for all intents and purposes it’s not that feasible to serve draught beer in a plane. But it still would loose carbonization more quickly.
As someone who has worked with beer professionally, I am very curious as to how this worked.
The most likely answer is that the keg is just a fancy beer bottle cooler and like the schnapps the beers were poured. Having an actual draught beer installation at altitude is a bit complicated due to the pressure of air. In a draught beer the pressure and temperature need to be steady. But on an airplane the pressure is not.
You can experiment on this by cumpling up a pet bottle whilst at the airport. When you get to cruising altitude it will have expanded due to the lowering ambient pressure.
But seeing the hand of the stewardess the top is basically a lid all other functionality is not shown (no bottles in the frame) So it’s meant to evoke a draught beer situation… They have put in effort thought of making those glasses looked like draught beer. They might even have been for the commercial. Carbonated beverages on planes lose their carbonation way more quickly due to the pressure difference.
Edit:
The schanpps is called schinkenhager, which means Skinny or light Ham. In this pariring that is funny.
Interesting, I had no idea that carbonation was a problem on airplanes!
A problem is a big word. Technically a draught beer system could be engineered that takes account of air pressure and controls the CO2 pressure accordingly.
But for all intents and purposes it’s not that feasible to serve draught beer in a plane. But it still would loose carbonization more quickly.