Soften the yeast in warm water. In a saucepan combine the milk, sugar, shortening, and salt. Heat until the sugar dissolves. Cool to lukewarm. Stir in 2 cups of flour; beat well. add the softened yeast, beat thoroughly until smooth. add enough remaining flour to make a moderately stuff dough. Turn out onto a lightly floured surface and knead till smooth and elastic (8 - 10 minutes). Shape into ball. Place in a lightly greased bowl, turn once to greased surface. Cover; let rise in warm place until double (about 1 1/4 hours).

Punch dough down; turn out on lightly floured surface. Divide dough into 2 portions. Shape each into a smooth ball; cover and let rest 10 minutes. Shape in loaves; place in two greased 8 1/2 x 4 1/2 x 2 1/2 inch loaf pans. Cover and let rise in warm place until double (45- 60 minutes). Bake at 375ºF. until done, about 45 minutes. If tops brown to fast, cover loosely with foil the last 15 minutes. remove from pans; cool. Makes 2