S1·E28 Episode 28

As chief Royal Military guard insists, everyone relating to the incident, including Court Lady Choi and JangGeum, gather to the Royal Kitchen. The opinions regarding sulfur-fed ducks, which are used to prepare the King’s meal, are conflicting. They decide to test the exact same dish serve to King to HongI. Not being able to endure the torture, the merchant who sold the duck falsely confesses his crime. Due to this, Court Lady Han and JangGeum are sentenced to death on a charge of high treason.