incorrect boil sg

[Tuomas Heiskanen]

Boil sg has invalid value when used equipment have losses. I have 2 liter lauter deadspace and 3 liter kettle to fermenter loss. I am going to make a 12 litre batch with og 1,120. The software shows me that the boil volume is 19 litres (correct) and the boil sg is 1,119 (should be ~1,095).
I am using Brewtarget 2.0.1 installed from .deb-package on Ubuntu Linux 12.04.

[Mik Firestone (mikfire)]

I will double check this. I know my equipment has losses in both the lauter tun and the kettle and I haven't noticed it being that terribly off. That isn't saying it isn't off, just that I haven't noticed it.

Thanks for giving me the OS version and bt version. That makes it a lot easier.

[Mik Firestone (mikfire)]

I will be investigating this tonight. Is it possible you could export the recipe causing the problems to XML and attach it to this bug report? It would help my efforts.

[Tuomas Heiskanen (tuomas-d)]

Here's the recipe you asked. There seems to be workaround to this problem - when setting kettle to fermenter loss to 0 and increasing the batch size by this loss (in this case by 3 litres so that batch size is 15 litres).

[Philip (rocketman768)]

Thanks very much. You are absolutely right. Targeting this for v2.0.3.

[Neal Musto (nealwrk)]

This is still a problem with BT 2.3 both boil sg and OG are calculated incorrect if there is a large lauter tun dead space, that is to say they are not even changed at all.

Neal Musto

[Neal Musto (nealwrk)]

sorry for the addendum but this bug is in the Windows version.

Neal Musto

[Christopher Zucker (chris-zucker-n)]

I am having the same issue with Brewtarget 2.3 with both the Mac and AMD64 binaries.

[Mik Firestone (mikfire)]

We have moved to github (https://github.com/Brewtarget/brewtarget/issues).

I will check to see if this issue is still open over there, and either update or add it as required.