I dl'd the cited reference, and did a keyword search. There was no "food pipe" in the article.
Hot Drinks and Oesophageal Cancer: Prospective Analyses in Around 1 Million UK Adults https://onlinelibrary.wiley.com/doi/10.1002/ijc.70654
Certain types of brain damage result in difficulty remembering nouns. Do you suppose the author, Michelle Roberts, is suffering from this, or is it Her editor?