Cupcakes sounds like a good addition, why not at this point..
I was thinking the extra sugar because of using unmated peal barley but not really sure how that works. Just taking guesses on things really. Have not really done much home brewing especially not in the past 10 years.
750kg brown sugar
handful of All bran
1/4 cup plain flour
splash of corn flour
400kg blended pearl barley
1/4 cup of polenta
5 black tea bags
few table spoons coriander
dash of instant coffee
possibly a little ground soup mix?
16-18 litres of water
2-3 heaped teaspoons of Vegemite
heat those...