citric acid

[corby_brewer]

this might be a stupid question, but when a recipe calls for 1/2 teaspoon of citric acid is there any reason why you couldnt use 1/2 teaspoon full of lemon juice.

 

[Aleman]

you need more lemon juice that that . . .Citric acid is concentrated lemon juice isn't . . . and no I have no idea if there is a 'conversion' . . . . it would vary from year to year and growing region to region. . . . Ritchies do an acidity testing kit for wines that is perfect for this sort of question as you can then do something like add acid to 4.0-4.2ppt . . . . no you can't use a pH meter/papers to do the same thing either

 

[wurzel]

Roughly (but near enough) the juice of one lemon equals 1tsp of citric acid