Preheat oven to 350 degrees F (175 degrees C). Grease cookie sheets.
In a large bowl, cream together the shortening and sugar until smooth. Stir in the molasses and egg. Dissolve the baking soda in warm coffee; stir into the molasses mixture. Combine the flour, salt, cinnamon and cloves; Gradually stir into the batter. Mix in raisins. Form dough into 4 long strips lengthwise on the cookie sheets.
Bake for 12 to 15 minutes in the preheated oven. Cool for 5 minutes on the cookie sheets then cut each strip into 2 inch bars while still warm.