Hi Mike, if you think about it 1 dried chilli = 1 fresh one, but drying removes the water hence the volume is less. The capsacin (active ingredient that gives the heat) remains the same. So 1 tsp dried chilli is equivalent to 2 or 3 tsp of fresh, depending on the type of chilli - a thick fleshed one like Jalapeno or Fresno is going to contain more water than say a Cayenne.