Meaning that (as pointed out earlier) they have two separate strengths. Normal and SC.
Since it’s been pointed out earlier that some are used in the 1% (or sub 1%) range, then some might mute at 2% (during flat batch tests).
I can’t imagine that many would have been in the same round… But just wanted to remind you of the factor during a time when you’ve got a lot of other things going on! (new sous-vide process, loads of new flavors excitement, others in house posing additional excitement/distraction with questions, etc)