No problem. I found best malz to have the most DMS of the continental pilsners.
Sent from my iPhone using Tapatalk
Yet that's my go to malt and I don't get any DMS from it. Wonder why.
I would make the assumption that Bryan's boil vigor and evaporation rate are much lower than yours, and it's your increased vigor and evap that's ensuring a thorough "scrubbing" of DMS and its precursors. If true, this would reinforce the usual recommendation to homebrewers of increased boil vigor and evap rates to help ensure that issue doesn't crop up (i.e. safe over sorry). The flip side could be that some malt "nuance" is lost/altered with the increased vigor/evap, but to reduce it then you begin "playing close enough to the fire that you might get burned" so "enter at your own risk" signs should be posted. Something like that.
4% boil off for me is too low(DMS CITY!), 5% slight DMS, 6% means I need a 70 minute boil, 7% is what I shoot for(right on the edge, but I brew in a temperature and humidity controlled brewery that is always 67F and 35% humidity, so its easy to replicate), and 8% is a solid number, but I noticed flavor degradation, and increased color pickup. That goes for every % point I went up from 4%. I am chasing the .5% and less now though, so it takes to some pretty weird places.