Hi Steve, I recently followed a post where the lady recommended using bees waxed wraps to keep sour dough fresh. I bought the largest one I could get and it actually works! Ian and I rarely finish a loaf before I need to cut and freeze it or it gets so hard it hits the compost. I was using a calico bag but the bees wax wrap actually works. It stayed fresh like new for about 3 days but was soft and easy to cut for over a week. For the first time we used every bit without needing to freeze it. Definitely worth a try. I’m planning on getting a second one. 😁