The Naked Scientists

The Naked Scientists Forum

Author Topic: can you mesure the "fizzyness" of carbonated drinks by using a ph meter?  (Read 4436 times)

Offline geo driver

  • Sr. Member
  • ****
  • Posts: 419
  • if you have a smile, share it
    • View Profile
now i understand that there is a change of ph when adding CO˛ to water but how profound is it?is it a profound difference or a slight .01 between really fizzy and flat?


 

Offline Geezer

  • Neilep Level Member
  • ******
  • Posts: 8328
  • "Vive la résistance!"
    • View Profile
Great question! Don't see why not, but let's see if somebody really knows the answer.

Sounds like a good product too. You could sell "swizzle sticks" so that people could test their sodas.

"Oi, Garcon!

Wot's this then? I specifically asked for a CO2 concentration of XYZ. I demand you take this back, otherwise I will have to take this up with the manager. And don't expect a bleedin' tip either."
 

Offline Geezer

  • Neilep Level Member
  • ******
  • Posts: 8328
  • "Vive la résistance!"
    • View Profile
So it won't go back to 7, but if it's flat it would be a lot highter than 3.0?
 

Offline geo driver

  • Sr. Member
  • ****
  • Posts: 419
  • if you have a smile, share it
    • View Profile
what im looking for is flat to fizzy, sorry, and the liquid is beer. i will do the experment when i got my hands on the equipment but if anyone already has numbers could help me prove my boss wrong.  also i hate serving flat beer
 

Offline geo driver

  • Sr. Member
  • ****
  • Posts: 419
  • if you have a smile, share it
    • View Profile
ill let you know when i get the results.  ungassed beer to carbonated beer i have a lot of beer to gass in the meen time
 

Offline rosy

  • Neilep Level Member
  • ******
  • Posts: 1018
  • Chemistry
    • View Profile
Depends on the carbonated drink. Colas have phosphoric acid added too, which affects pH independent of fizziness.
 

Offline geo driver

  • Sr. Member
  • ****
  • Posts: 419
  • if you have a smile, share it
    • View Profile
the only way to find out for sure then is to tack the beer ph before i put co2 into the conditioning tank, and every 24 hours take the ph reading. in theroy there should be a change in ph after that its a question of how much and how this can relate to the amount of co2 in the sealed conditioning tank
« Last Edit: 19/01/2010 14:19:47 by geo driver »
 

Offline Geezer

  • Neilep Level Member
  • ******
  • Posts: 8328
  • "Vive la résistance!"
    • View Profile
A less scientific method would be to consume a sample periodically and time the duration and frequency of your burps.
 

Offline geo driver

  • Sr. Member
  • ****
  • Posts: 419
  • if you have a smile, share it
    • View Profile
lol i have to do that anyway as part of my job.... well the testing not the burping
 

The Naked Scientists Forum


 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums