To make rye bread brew, cut a day old rye bread into pieces and dry in the oven until it develops a little darker color.
Place the bread into a deep pot, cover with boiling water and leave to sit for 5 hours.
Add sugar and yeast to the mixture and leave in a warm dark place for 3 hours.
Transfer into glass bottles or jars and leave in a warm place for 2-3 days.
Strain and cool.
You will need:
- Rye bread – 5 oz
- Dry yeast – contents of 1 bag – ¼ oz
- Water – 12 cups
- Sugar – to taste