I've got a few brews for which I don't have SG's to calculate alcohol content.
An orange wine which included the zest and was very foamy plus a ginger beer which had a lot of undissolved sugar that may or may not have fermented but wasn't measured at OG.
Is there a way to get a measurement other than drinking a couple of bottles and checking for wobbly boots or blowing in a breathalizer?
Cheers, Geoff.