An Alt ferments with Ale yeast at colder lagering temperatures. This effect gives Alts a more refined a crisp lagerlike flavor than traditional ales. The Double Alt means that it has been Ninkasified. Regular Alts are 5 to 5.5 % and 40 ibus.Sleigh'r has a deep toasted malt flavor that finished dry and has 7.2 % alc and 50 IBUs keeping it in a perfect Alt balance.!