How did Dutch coffee houses help popularize coffee in Europe?

Hi all,
I’m working on a project for my history class about the spread of coffee culture in Europe, and I’m focusing on the influence of the Dutch. From what I’ve read, Dutch merchants introduced coffee to various European countries, but it seems like their coffee houses played a key role in making coffee a popular beverage. How did the Dutch coffee houses, like the first one in The Hague, contribute to coffee culture? What were the social and cultural impacts of these establishments in the 17th century? Any insights would be greatly appreciated!