Hello, I'm new to soap making and would appreciate any input. I've been doing a lot of research on cold process and room temperature process, and decided to go with room temp for my first batch. Everything seemed to go well, but when I took it out of the mold the soap was too hard and brittle to cut with a knife; large shards would shear off, so I cut it using a small band saw. I have been reading that brittleness can be cause by either too much lye or the properties of the oils. My recipe was: 37 oz Canola oil, 24 oz Crisco shortening, 26 oz olive oil, 25 oz water, and 11 oz lye. I would like to save my first batch if at all possible. If I have used too much lye, can I rebatch and add more oil? Any advice would be greatly appreciated.