Grandma Cornish'S Whole Wheat Potato Bread - cooking recipe

Ingredients

1 medium potato, peeled
2 cups water
1 teaspoon salt
1/3 cup white sugar
1/3 cup shortening
1 tablespoon salt
6 cups warm milk
3 (.25 ounce) packages active dry yeast
1/2 cup warm water (110 degrees F/45 degrees C)
1 teaspoon white sugar
15 cups whole wheat flour

Preparation

Dissolve yeast and 1 teaspoon sugar in 1/2 cup warm water.
Boil one medium peeled potato in 2 cups water with 1 teaspoon salt. Mash the potato in a medium bowl, while reserving the water. Combine the mashed potato, potato water, 1/3 cup of sugar, shortening or oil, 1 tablespoon salt, and milk in a large bowl.
Make sure the milk mixture is warm, and add the yeast. Stir in 15 cups of whole wheat flour.
Turn dough out onto a lightly floured surface. Knead for about 10 minutes. Place in greased bowl, and turn to coat the surface. Cover with a damp cloth, and allow to rise until doubled. Rising time will be about 1 1/2 hours. Punch down, and knead again for 3 minutes. Place back in bowl, and allow to rise again until doubled. The second rising period should be about 1 hour. Punch down. Form 4 loaves, and place into 9 x 5 inch greased bread pans. Let dough rise again for 30 - 60 minutes.
Bake at 325 degrees F (165 degrees C) for 1 hour.