The radishes in Tibet are large, usually white, high altitude cousins of the daikon radish and are used here as a pickle ingredient. This pickle is very tart and vinegry but mellows over time; it is meant to be used as a condiment, not on it's own. Daikon radish is available year round, allowing this quick pickle to be made any time of the year and stored in the refrigerator for weeks. This pickle is also used as an ingredient in other condiments, such as Lhasa Yellow Achar. This recipe is from the book, " Beyond The Great Wall, Recipes and Travels in The Other China" by Jeffrey Alford and Naomi Duguid.