I did but it was a very small amount, 10 grams for two medium loaves. Not much but I really think it made a difference. I used the rye whole in zolablue's PIERRE NURY'S RUSTIC LIGHT RYE. I posted pictures under zolablue's post for this bread. If you have time give it a try. Next time I'm going to increase the rye some but I don't know how much yet.