The story provides a generally accurate depiction of tanghulu, including its origins and cultural significance. The claim that tanghulu originated in the Song Dynasty aligns with historical accounts, and its description as a traditional Chinese street snack is well-supported. The narrative about its medicinal origins, while legendary, is a common cultural tale. The global popularity of tanghulu, particularly its rise on social media, is plausible, though specific details about its spread could benefit from more precise data. The safety tips for making tanghulu are accurate and align with standard culinary practices.

The article primarily focuses on the cultural and culinary aspects of tanghulu, with an emphasis on safety tips for preparation. It provides a balanced view of the snack's historical significance and modern popularity. However, it could include more perspectives, such as those from consumers or street vendors in China, to offer a fuller picture of its cultural role. The piece does not exhibit overt bias, but it leans heavily on the culinary and safety aspects, potentially omitting broader cultural or economic impacts.

The article is clearly written, with a logical structure that guides the reader through tanghulu's history, cultural significance, and preparation tips. The language is accessible and informative, making complex cooking techniques understandable for a general audience. The tone is engaging, particularly in the personal anecdote that opens the story, which helps draw readers in. However, some technical details about sugar crystallization could be simplified further for readers unfamiliar with culinary processes.

The article references Chef Trung Vu from the Institute of Culinary Education, lending credibility to the culinary advice provided. However, it lacks attribution to other authoritative sources or experts on the historical and cultural aspects of tanghulu. Including insights from historians or cultural experts would enhance the depth and reliability of the information presented. The reliance on a single culinary expert limits the breadth of expertise covered in the article.

The article lacks transparency in terms of its sources for historical and cultural claims, such as the origins of tanghulu and its medicinal legend. While it provides practical cooking advice, the basis for these claims is not thoroughly explained or supported by cited research or expert opinions. Greater transparency about the sources of these claims would improve the article's credibility and allow readers to assess the reliability of the information.