Is It Safe to Bring Back Into the UK?

It takes days, if not weeks or years to properly dry a chunk of wood so it doesn't crack. So I basically put it in the oven and very slowly brought the temperature up. And then I baked it for several hours at 150 degrees Celsius. It did get some mild additional cracking, but nothing too bad. In theory, it's now safe to bring back into the UK. All we need is a certificate from the plant health authority. We can either get someone in Perth who thinks they can do something with my Jara route. Or maybe even state to state would be an issue.