Why would people be interested in coffee that don’t to brew? For most people, I think it would be the curiosity factor that drives them to find out more.
Afterall, you might be thinking what scientific theory is behind the coffee that do not need to be brewed. There’s no great theory behind toddy coffee maker, that happens to be the one that can produced great coffee without brewing.
The science behind the extraction of coffee in this case is the steeping. While most coffee makers uses heat to extract the coffee oil and therefore taste out, toddy uses time to extract the coffee oil.