Specific Gracity and Temperature.

[Whroobushy]

I am just looking through my records and have just noticed that the brews with a higher start temp seem to have a slighlty higher SG.
Has anyone else noticed the same thing, done any testing on that? Or is it just coincedence.

[spatch]

I've read somewhere that hydrometer are "calibrated" in water at 20C.
I'm not sure how the temp affects it bit it sits slightly higher/lower depending
on temps.
Can't help more than that sorry, there is a post in here somewhere saying how it differs,
do a search on gravity readings and temperature.

[Whroobushy]

Thanks for that.

[warra48]

Here is a link to How to Brew, which has a table of hydrometer temperature corrections.

http://www.howtobrew.com/appendices/appendixA.html

If you have a programme like Beersmith, it has a function which will calculate it for you, but otherwise, the table in the link is easy enough to use.

[Whroobushy]

Good thanks very much for the info.

Whroobushy