Generally speaking, there should be no more than 6 jujubes, and longan can be pitted, up to 4~6. If you drink it every day, the amount can be slightly smaller.
If you buy red dates, you can buy those processed jujube slices, which are easier to taste .. you can brew them directly with hot water, no problem. Generally, it is almost enough to soak in 2~3 water. It is not good to soak too much.