I'm new to electric brewing. Just had a wet test run over the weekend. My element already has a thick layer of something white stuck to it. I'm sure this is normal, but what is it?
Looks like hard water deposits or lime scale.
Mine looks the same. It's from hard water. If it bothers you a green scrubby will remove it. Or do a hot recirulation with pbw.
I find dry firing the element cleans it up nicely...though I only clean it that way when I'm not paying attention to what I'm doing.