It was added as an option in the water calculator bit not in the mash water pH adjuatment calculator.
Still no progress in this? Please note that in Europe 80% lactic acid is the most common and to ad this to the drop down manu and as a parameter would be really useful. Thank you for your good work btw.

@Sebastian Eriksson , I see that you would like to use 80% lactic acid in our stand alone calculator.
We have currently added support for setting the Acid % in the water additions calculator, but not in our stand alone calculator.
Thanks for bringing this to our attention.
We will implement it soon.
