5 % percent of distillers malt will convert it. The regular stuff on the market is strong as anything you would ever wish for. Like brylcream, just a little dab will do you. Malt will stil work in the fermenter as well, but I imagine they are having to use a beta glucanase at least so they can pump it and take pressure off the yeast. I am going to have to try a bottle of this. I rather like that style of rye. Just wish it were more affordable.