og reading

[sam c]

to take an og reading on my tc can i just take a sample from a carton of apple juice or did i need to put all 4 litres in the dj and then do it? sorry imbeing a bit dumb!! i already did it by taking a sample from the carton and got 1053, so it is too late already but would like to know for the future. by the way no extra sugar was added.thanks

[tomU]

Yeah, It'll be the same wherever you take the sample from. Its measuring the relative density of the juice compared with distilled water - this will be the same for any volume.


edit: the only issue here is that different cartons may have different gravities so maybe a sample from the mixed volume would be better, although I doubt it would vary that much from carton to carton...

[sam c]

cheers tom. thats what i thought before unill i had a stupid moment!!

[Mitchamitri]

remember that there are temperature corrections for og readings - not usually worth bothering to "correct" at normal temperatures but if you juice is straight out of the fridge then its worth it. The conversions are somewhere on this site.......