Yeah, thats what I mean. Normally, i wouldn't pack it down but when measuring brown sugar I do. With leafy greens its going to matter a lot more. I guess I'll just start trying different methods and see what works best.
You really have to eye it and account for the empty space. For kale, I pack it in tight like brown sugar. For a recipe that says a cup and half of strawberries, I cut the strawberries in quarters and place them in a measuring cup and try to eye it.
Great thing about making a smoothie is that you can taste it after and see if it needs more x or less y. Which helps