cookstar

iTrader: (6)

Coke/fizzy drink bottles go flat quicker if laid on their side?

AJF

iTrader: (1)

fact something to do with surface area

Adrian

Gordo

true - but also down to relative pressure.

i.e. keep an unopened bottle flat or standing up and it won't change. open it, pour some out, re-seal and it will lose it's fizz quicker on it's side but left standing up it won't take too much longer as they'll both end up at the same level of fizz once they've re-balanced the overall level of pressure.

I think

Gordo

zip106

I'm sure i saw some boffin on TV say that if you squeeze a part used bottle so the contents were up to the neck of the bottle, it'll stay fizzy longer.
Again, I guess it's down to surface area?

Janspeed

iTrader: (1)

This is a question for..............BRAINIAC!!!

Turbohot

Look! I won't look for a reason to put fizzy drinks down. They are bad for our teeth and guts, full stop
But I still love diet Coke
( only due to the adverts, mind )

Gordo

Nope - this is the pressure bit of my post - i.e. the less air you leave in the bottle when you re-seal it, the less gas needs to come out of solution to equalise the pressure, so the fizzier the drink remains.

How sad are we all discussing this at this time of night!

Gordo

boxst

If you leave the bottle for a long while then regardless of whether it is flat or standing up the result will be the same.

If it is for short periods (and I don't know how long 'short' is), then you have a larger surface area for the gas to escape from the liquid to equalise the pressure so it will get 'less fizzy' quicker.

Steve