Umbala unotshani ophuzi ukuya ku-amber, iphunga elimnandi lilandela ujamu wamabhilikosi, ukunambitheka kunezithelo ezimnandi ngemva kwamabhilikosi nama-alimondi ababayo ane-asidi ebabayo ekugcineni.
alk. isamba - 10.2% wevolumu ephelele. ama-asidi - 12.2 ushukela - 28.9 g/ iqukethe ama-sulfate, E 202