Hi,
When using this mod, I noticed that you can add potions to soups (Thank you for doing that btw), but when you drink it and open the creative menu, the potions in the creative menu go down with the remaining duration of the potion. (Speed 8:00 was put in a soup, when I drank it, the potion's time decreased in the creative menu). Then, when the potion was drunk the time effectively was not the 8 minutes that it should've been.