The type of tea you just described to me is more of a nute tea, you most likely aren't going to be able to smell the compost/castings or the molasses. This is the type of tea you use to feed the plant.
The tea I am talking about with smell the compost or molasses is just a microbe tea. Different from a nute tea, a microbe tea is simply for creating the microorganisms to add to your soil at higher numbers, the the microbes in return help your soil and your roots, which helps your plant. All you use is two things, castings and molasses. This tea you can feed as often as you want, but can get to the point where the soil is so full of microbes that you don't have to feed microbe teas and often and your soil microbes will be self-sustaining.