Timing isn't too critical on that, it just needs enough time for the capsule to dissolve. You can always open it and dump it in the fermenter.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk