Is better to work 2h or 12x 10min?
Statistically, you'll find an equal number of products in one 2-hour shift or twelve 10-minute shifts.
Beans are a 60% drop, or a 20% drop doing 10 minutes.
30 minutes: 1/0.6 ≈ 1.667 30-minute shifts to find 1 beans = 50 minutes on average
10 minutes: 1/0.2 ≈ 5 10-minute shifts to find 1 beans = 50 minutes on average
Still, I trust the game more with a 60% drop.
The only thing better about shorter jobs is that your motivation is higher, but the effects are miniscule and the RL time requirements are ridiculous. Do you have premium automation? Do you really want to schedule work every 20 minutes?
I think in jobs it needs to be mentioned that a product with 100% chance to be found does not mean that it is guaranteed you will find one but that on average you will get one item for every 30 minutes of work you do.
i.e after 5 hours of picking tobacco(which has 100% chance to find an item) you would on average have 10 tobacco leaves.
This would mean that after ten minutes there is only a 33.3% chance or 1/3 of finding a tobacco leaf.