What do you call a factory that makes okay products?

The joke “What do you call a factory that makes good products? Satisfactory.” is a play on words where the term “satisfactory” is used in a literal and a figurative sense. In common usage, “satisfactory” means good enough, meeting the basic requirements or expectations. However, in the context of this joke, “satisfactory” is broken down into “satisfy” and “factory,” thus leading to a pun where a factory that satisfies customers with good products is humorously termed a “satisfactory.”