How long does it take to blanch the toon, mainly depends on the freshness of the toon, usually takes 30-60 seconds, if the leaves of the toon are relatively small, the stem can be easily pinched off by hand, indicating that the toon is relatively fresh, blanch it in boiling water for 30 seconds. If the leaves of the toon are wider and the stems are not easy to pinch off with your hands, it means that the toon is not tender enough and needs to be blanched in boiling water for about 60 seconds.