Mistake: “五辛” means all spicy food. This is the most common error. English speakers often equate “辛 (xīn)” with the “hot spicy” of chili peppers (辣椒, làjiāo). However, chili peppers are NOT part of the 五辛. The term refers specifically to the pungent, acrid quality of the allium family. Ginger (姜, jiāng) and pepper (胡椒, hújiāo) are also acceptable in a 五辛-free diet. The “辛” here is about a specific type of stimulating energy, not just heat.
Mistake: Conflating “素食 (sùshí)” with Western “Veganism”. While both often avoid meat, eggs, and dairy, the defining feature of “pure” Chinese Buddhist vegetarianism (净素, jìngsù) is the additional exclusion of 五辛. A dish can be 100% plant-based and therefore “vegan,” but if it contains garlic, it is not suitable for a devout Buddhist. Always clarify “不含五辛” (bù hán wǔxīn) if you need to.
The List Can Vary: While the core group is consistent (garlic, onions, scallions), the exact five vegetables can differ slightly between Buddhist and Taoist traditions and historical periods. For practical purposes in modern China, it's safest to assume it includes the entire allium family: garlic, onions, leeks, chives, shallots, and scallions.