Put the flour and salt in a bowl and mix together. Mix the dry yeast with the cold water and add to the flour, stir briefly and then knead well with your hands for a few minutes. Form a small loaf and cover in the bowl and let rise in the refrigerator for 1-2 days.
Put the loaf in a small loaf pan or place it on a baking sheet, cut the surface slightly with a knife, brush with water and bake in a preheated oven at 225 degrees for about 45-55 minutes until the crust turns dark brown.
My bread has become fine-pored with a crispy crust and tasted very fine without any yeast taste.