Prosfora Bread

How good the house smells from baking flour, yeast and water. My first attempt ... And I think I needed to knead more and make two loaves, not three. (six cups flour, 2 cups warm water, 1 yeast pack, 15-20 minutes at 375-400 degrees.

Editors Note: since this post is so popular, some tips:

• Put the yeast pack in warm water, let it foam in a warm place, then combine a half cup of flour,  let that sit 10 minutes, then add the rest of the flour, mix and knead thoroughly. You don't want yeast bubbles, which really would only result if you didn't knead properly.
• Knead with your hands for best results -- you'll get tired using muscles you didn't know you had. 
• You should dust the seal with flour, to avoid sticking, and you press the seal into the formed dough as if you were flattening a pancake. Don't worry about the flour left on the bread.
• One you press the seal, let the dough rise a bit - dough won't quite double. In a drafty house, put the oven on and place rising dough nearby. Surfaces touching bread pans should not be hot.
• Before placing in oven, poke 6-8 times outside seal area with toothpick. 
• It's ok to use disposable, round aluminum baking pans.