In tos base they say that the drop rate of the recipe is .25% so you need to kill 400 pino in general to get 1 but this is not 100% sure that it will drop on that rate
So does changing channel affects the 400 pino count or it is just pure luck
I already killed thousands of pino i only got 1 recipe for the first 300 pino then the day after that drop i tried killing pino again and killed 700 pino but i am switching channels it does not drop sad life