Word of the not-so wise:
Please DRINK UP your MCT coffee right away as soon as you mix it to coffee. Otherwise you would experience this generously greasy mess!
I made the incredibly ugly mistake of putting it in my coffee carafe (which is not a good product either- thanks, starbucks) and experience the worse—even way worse than spilling coffee.
Actually having to wipe away the greasy oil off my bag and my carafe.