howdy - and welcome!
if you are steeping
juice that you mixed, i find that any creamy or
dessert type flavors generally need a week or more, straight fruit flavors not so much... so, tiramisu, marshamallow probably benefit from more time (week +), cola won't need as much... fruits should be ready to try within a day or so, i would think - i have a lot of FA flavors, but none of those specifically, so can't give you any real definite answers