Mining vs Pizza?

I've been wondering for a quite some time now; which job is better at making gralats?Mining (Level 30, 35, 40, etc) or making pizzas? I'm looking for how much gralats you can make every 30mins/hr. I'm also willing to take the time to reach a decent level for mining, ex: 30, 35, 40 etc.

FYI: Don’t suggest another job such as car missions, trash picking, etc. Those aren't my types of jobs. If anyone could tell me which job would be better, mining or making pizzas would be greatly appreciated, thanks!