every since i started rooting figs, i have noticed this. water is being pulled up to the leave and it's forming little "dews" on the leaves. this happens on most of my cuttings in the cup. some times i wipe them away, and some times, i'll air them out. 

at first i thought it was condensation on the leaves. but it doesn't seems like that's the case. 

in the same humidity bin, some cuttings will get this, and some won't. 

i assume this is due to well developed root system pulling  up the water. while the leaves are perspiring, this in turn "condensate" and form the "dew" on the leaves.

if i'm right.. what is this process called?  

Perspiring leaves

It's called "Transpiration"

Can you spray some anti-persperent?  lol.. j/k

James -- that would be anti-transpirant in this case ;-)
Pete --  good luck handling whatever transpires...
Cheers,
Jim

Pete, I think the males perspire more... just like us LOL
Kidding.
anyhow, that's exactly how we get our O2 in the air, by the plants sweating and evaporation separates 2 types of gases from H2O Hydrogen meaning born of water and Oxygen O2.

Pete.

For some reason the term cavitation came to mind. But that's not it.

Google "plant guttation "

Pretty sure that's what you're seeing.

hey dan. Maltese Beauty is good enough right now i'm not too concerned. in 1 gal and in humidity bin. but it's the young 'uns i'm concerned about. the liquid sitting on the new leaves coming out. i'm sure sooner or later, few will start to turn black and rot. urgh.. if hydrogen and oxygen is being leased from the leaves.. i guess they will turn to water. i just hope they go turn to water somewhere else.