Pour the soaked rye into a large bowl and break up large clumps with your hands.
Next, add the whole wheat flour (or you can use rye flour, if you don't want to use wheat) and the salt and work it through the soaked rye.
If your dough is not able to hold together when squeezed, then add a little water at a time until you reach this consistency.
Now, press all of the dough into a greased loaf pan, packing it down evenly so there are no air gaps in the final bread.
Generously sprinkle your work surface with wheat bran and remove your shaped loaf from the pan and press each side of the bread into the wheat bran until it is well coated.
Place the loaf back in the pan, gently reshaping as needed.
Wrap the loaf pan in both directions with aluminum foil, making sure to seal all seams.
Place an oven-safe pan of water onto the bottom rack of a 110℃ / 230℉ preheated oven and place the foil-covered loaf pan on the middle rack. Bake for 12 hours, periodically checking your pan of water and adding more as needed.
After 12 hours, remove your bread from the oven but leave it covered in the foil for 24 hours.