First off you need to find yourself a nice large baking tray or two - or improvise like I had to by using a deep baking dish, a baking tray and a strange little steel serving thing. Next you want to lay out your grains fresh from the mash, but be sure not to lay it out too thick as it will take longer to dry out.
The hardest part was grinding it up as I don't have a coffee grinder, only a pestle and mortar, but even that went pretty quick when we figured out not to take too much at a time. By the end of the weekend I had a jar full of my very own (menacing sounding) Black Rye flour.
Mixing in some ground up and some whole grains, my lady was able to make some epic rusks for them chilly winters evenings!!!
There are a plethora of recipes available on the net that tell you how to make the perfect treat for your furry kids with your left-overs. Just be warned that they all come with the same warning: the acidity in hops can be toxic to some breeds so just make sure that the grains have not touched anything hoppy and you should be good. The simplest and most common one I found seems very easy and might just come in handy for when you visit that new lady friend and her pesky pooch.
For those creatures of the grazing variety, grains can be used to feed chickens, pigs and even cows. From what I read it is basically the animal equivalent of heroin. If you don't have any of these hanging around, it might be worth a call or visit to one of the many local organic farms or markets around Cape Town to see if any of the farmers can take it off your hands as feed.
If you would prefer not to eat it or feed it to your pets, you can turn it into compost if you know someone with a bit of backyard space. It might even be a way to convince your better half to allow you to brew more and for them to finally kick off that ever pending veggie patch. Who knows, you might just score some tomatoes or lettuce out of the deal!
*Needless to say, all recipes/end-products/suggestions are to be used/consumed/followed at your own risk.