App Development and Condiments - S5-E8
Trivia: The character "Koogler" is portrayed by Mitch Hurwitz, the creator of another beloved cult-sitcom, "Arrested Development." A year prior, "Community" creator Dan Harmon had appeared in season four of "Arrested Development" in a cameo role, and Hurwitz returned the favor.
Answer: It was part of the plot that when the boiled yam was dropped it looked like it was stepped on (which it never was). So there was no way to tell the difference between the flesh being soft because it was boiled or because it was stepped on (in the show that is, I don't know if one could tell the difference in real life). Plus, the rest of the yam wasn't boiled, so there was no evidence the yam was sitting in boiling water.
Bishop73