The Phin filter is a Vietnamese drip brew coffee maker. It is the most common way to brew coffee in Vietnam. Coffee was introduced to Vietnam during the French colonization. Since then, coffee has taken on its own life in Vietnam, which has grown to become the second-largest coffee exporter in the world. The Phin filter is a great way for anyone to enjoy a good cup of coffee. It’s easy to use, cleans up quickly, and produces a high-quality brew.