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Hello, you could check these ideas; they are not for beer, but I think they apply to beer too; http://sciencing.com/measure-soft-drinks-science-project-5731377.html http://sciencing.com/experiments-compare-carbonation-soft-drinks-8492793.html http://engineering.oregonstate.edu/momentum/k12/mar06/ For a more scientific manner, you can buy some device to measure the liquid density (I am sure they must exist) and find out the exact formula of how the density depends on Co2 concentration ; here is an example paper pubs.acs.org/doi/pdf/10.1021/je5009125 Good luck Best regards Simona On 19.5.2017 20:10, Dr Stuart Farrimond wrote: > > Hello fellow psci-comers, > > An interesting Friday question for you. > > For the celebration of all things scientific and ale-related, I am > trying to come up with a way to figure out which brand of beer is the > ‘fizziest’. Aside from purely subjective tasting, does anyone have any > good ideas on how to quantify the fizz/carbonation within a > bottled/canned ale? The most obvious method would be to put a balloon > over the top of a bottle, although I dare say this will yield very > meaningful results… > > Over to the great collective mind! > > Stu Farrimond > > ********************************************************************** > > psci-com how-to: Once subscribed, send emails for the list to > [log in to unmask] <mailto:[log in to unmask]>. If not > subscribed, either subscribe here > https://www.jiscmail.ac.uk/cgi-bin/webadmin?A0=psci-com or send > requests for items to be posted on your behalf to > [log in to unmask] <mailto:[log in to unmask]> > > To unsubscribe (or silence messages while away) send an email (any > subject) to [log in to unmask] <mailto:[log in to unmask]> > with one of the following messages (ignoring text in brackets) > > • signoff psci-com (to leave the list) • set psci-com nomail (to stop > receiving messages while on holiday) • set psci-com mail (to resume > getting messages) > > Contact list owner at [log in to unmask] > <mailto:[log in to unmask]> Small print and JISCMail > acceptable use policy > https://sites.google.com/site/pscicomjiscmail/the-small-print > > ********************************************************************** > ********************************************************************** psci-com how-to: Once subscribed, send emails for the list to [log in to unmask] If not subscribed, either subscribe here https://www.jiscmail.ac.uk/cgi-bin/webadmin?A0=psci-com or send requests for items to be posted on your behalf to [log in to unmask] To unsubscribe (or silence messages while away) send an email (any subject) to [log in to unmask] with one of the following messages (ignoring text in brackets) • signoff psci-com (to leave the list) • set psci-com nomail (to stop receiving messages while on holiday) • set psci-com mail (to resume getting messages) Contact list owner at [log in to unmask] Small print and JISCMail acceptable use policy https://sites.google.com/site/pscicomjiscmail/the-small-print **********************************************************************