Ok I'm trying to make something in the realm of a Bohemian Pilsner but I don't have the ability to lager. I have a cool brew fermentation bag and I have been able to keep that around 60F no problem. I was thinking about using a kolsch or alt yeast with a BoPils grain/hop bill. I've never tried either, nor have I tried a German ale yeast but I heard keeping the temp low would produce fairly clean results. Any thoughts?