This is my first time rendering wax but have been harvesting honey and saving my cappings for a few years. A beekeeper who stopped beekeeping probably 15 years ago gave me a bunch of mostly dirty wax the other day, so I figured do one batch with his and then do mine. Anyway, I melted all of his down and got almost 4.5 lbs. The only thing I was not sure about is, is it clean enough. I have attached 2 pictures, 1 of the top of the wax which is clean and the bottom which isn't as clean. Can I just cut the dirt out?