<p><strong>When first use, put 5-10 grams of tea into the iron pot and boiling for about 10 minutes. A tannin film will cover the inside of the pot, which is the reaction of tannin from tea leaves and Fe2+ from iron pot, will protect the pot. Pour away the water when boiled, then repeat boiling 2-3 times until the water is clear. </strong><br> Japan's iron pot is originated from water heaters produced in Tang Dynasty and Song Dynasty of China. Japan's iron pot may be traced back to the Japanese Edo Period (1780s), and has several hundred years of history. The iron pot is very popular in Japan, and is almost used by each household. We provide a vintage packing box for every iron pot, so you can give your friends and families as a gift.</p> <p>All ISINO iron pots are hand polished, and are innovated and improved on the basis of ancient pot making technology. The iron pot receives the best gloss enamel processing in its inside for easy daily maintain. We provide a pad for free so that your desk was protected when putting a hot iron pot above.</p> <p><strong>Package included</strong></p> <p>--1*800ml Cast Iron Tea kettle <br> --4*70ml Cast Iron Teacup<br> --1*stainless steel Infuser <br> --1*Cast Iron Trivet <br> --1* Wood Lid Holder</p>