The main concern with No-Chill is that your hop additions behave differently. Not particularly better or worse.. but differently. And it can take a few brews to get a handle on the differences and how they happen in your particular brewery.
DMS has not been an issue - even when using imported european pilsner malts. An appropriate boil is of course required.
Why? would chill haze be an issue? It isn't - no chill beers are no more nor less inclined towards haze issues than chilled beers. But I want to know why it is that people think it is going to be an issue? Cold break occurs when your hot wort gets cool. The proteins that are not soluable at low temperatures precipitate out -- this happens at a certain temperature, the speed with which you reach that temperature matters not at all.
No chill is about saving water, saving time on brew day, I believe it reduces critical control points for infection; and it increases your brewing flexibility because no-chilled wort is storable for quite extended periods.
The one thing that is not an issue for sure - is beer quality. Far too many medals in the brewing competitions here in Australia have been won by NC beers for that to be a consideration any more. I have shelf full of trophies won by no-chill beers - and if I can do it anyone can.
I own both an immersion chiller and a plate chiller .. they both gather dust impressively. My no-chill cube on the other hand is full of a Munich Dunkel that I brewed on Monday.
TB






