Free Winemaker's Software

I took a quick look. Its a cool little tool. I currently do all my work in excel, so I'll just paste this into my files. Thanks One question though, you have TA as 7.0 and 6.0 on one of the sheets. do you mean 0.7 and 0.6? What units are you using? thanks marc

Some refer to TA in percent (0.6%) and others in g/l (6g/l). g/l is the more accepted term now.

The other weird thing about acids is the French may still use sulfuric as their 'expressed acid' while the rest of the world uses tartaric. That makes theirs look a little lower in their literature. Any time you refer to a TA the most correct way to do it is to state the units and state what it's expressed by, for example: "0.6% expressed as tartaric".

It's kind of like miles and kilometers... :O)

Joe

so does .6% in fact equal 6g/l, or is there some conversion?

Hi I just thought I would chip in to add to Joe's point that as well as France, I believe the UK also expresses sulphuric as the expressed acid type - my Ritchies acid test kit does anyway. So perhaps it is a European thing in general?

Cheers, Jim

No it is not a General European thing.

In Holland, Belgium and Germany tartaric acid is used as the reference. As far as I know Australia also uses tartaric acid as the reference.

Luc Volders

Yes. 0.6% of 1000 grams is 6 grams. (1 liter of distilled water at standard temperature and pressure weighs 1000 grams, that's why they equate so well.)

Joe

Marc,

My spreadsheet represents acidity in grams per liter, whereas you are expecting it to be in % tartaric. They are essentially the same. But I appreciate your observation, and will give it some thought.

Regards,

Gary

Thanks for the answer Luc, much obliged :)

Jim