19 episodes
First episode: E1
Long-established Trade Secret
A gourmet exploration entertainment show that finds the old store and delves into the special trade secrets that allowed it to survive for a long time.
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Show FAQ
Quick answers about this series, release status, and episode totals.
When did Long-established Trade Secret first air?
Long-established Trade Secret first aired on August 23, 2021.
How many seasons and episodes does Long-established Trade Secret have?
Long-established Trade Secret currently has 3 seasons and 85 episodes.
When is the next episode of Long-established Trade Secret?
No official next-episode air date is listed for Long-established Trade Secret right now.