In the Netherlands, the common iced coffee drip filter consists of 3-4 layers of glass containers mounted on wooden seats. It is recommended to use deep-roasted coffee beans to make ice-drop coffee. Slow drip filtration of 10 seconds and seven drops is recommended for about eight to ten hours. This long-time low-temperature extraction method makes the coffee powder 100% wet and effectively removes bitterness and tannins. Coffee is clear and amber, full-bodied, smooth, not sour, and does not hurt the stomach.
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