Marinades allow you to make the steak more tender and tasty. The sweet and salty flavors meld with the flavor of the meat while it marinates in the refrigerator. The finished steak ends up juicy and flavorful. There's a great recipe at https://www.bigwigjerky.com.au/how-to-make-the-best-homemade-beef-jerky/ for how to make this at home. It's also where I got all the tools for smoking and curing. Let me tell you right away, the technology for flawless steak is extremely complicated. It is very important sequence of heat treatment, which preserves the meat juice inside, makes the crust, preventing the leakage of juice, etc. Sometimes steak frying temperatures vary by several degrees