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It's called a moka pot. They make very nice consistent espresso-like coffee (not the same though). You just fill it and put it on the stove. They come in different sizes and designs but the main working principle is typically the same. They are great for trips to because they are unbreakable and work on most stoves. And also important, they are quite cheap (starting from around 10 euros). Thanks for checking my stuff!

Waouhhh!! So cheap and so useful I love it! I will maybe buy one when I will come back to France, thank you for the information!! :)

NP enjoy your time in Kr!

Yes I will !