I have made 1# batches with no problems. Another thing you can do is take a batch of soap and make it about 5oz more. At LIGHT trace, remove 5oz and scent it as desired. Remeber, with that amount though, it may move faster on you than it would in a full size batch. Then make the rest of the batch into whatever you had planned. That way you only get 5oz of soap as opposed to a whole lb.