From beginner resources I've read/watched, a big deal is made of keeping your soaping tools and utensils separate from kitchen equipment. i.e. don't use tools you've used for soaping for food because of lye contact. That's mostly fine with me but I'm wondering about if this includes, or how big a deal it is, using a kitchen chef's knife to cut curing soap. I have a sheet of soap that's been curing for about 2 weeks. I used a plastic container to mold it, so it's about an inch high and maybe 8x8 inches square. Anyway I want to cut it. At this point, should it be safe to use a knife I plan to use for food to cut it? Or should I really dedicate a soaping knife?