Ju-ruo can only be refrigerated; if it is kept in the freezer it will become too hard.
Adding some soy sauce to the wasabi will also make a nice dish. Minced ginger, soy paste, white vinegar and sesame oil can also be added to use as the dressing for Ju-ruo.
Wasabi contains muster seed, fat, protein, and multi-vitamins which are essential nutrients for the body. The Handbook of Chinese Herbs indicates the following functions for Wasabi: "It is pungent, hot but non-toxic in nature. It serves to dispel cold and warm the body. It can benefit the five organs, stimulate stomach and help with digestion." But when too much wasabi is consumed, one may become dizzy and agitated. Wasabi can then drain one's energy and harm one's vital essence.