Happily real bread is finally available on Porirua shelves, but if it's not:
Don't leave the yeast concoction too long!
For bread itself mix with eight cups wholemeal flour and one dessert spoon (= four teaspoons) salt. Knead lightly and rest in a warm bowl. Wait 'til bulging over top of bowl. Give it a huge kneading. Bake quarter of an hour at 220° reduced to 180°, then a half hour on low.