The Southern iron bottle is a traditional craft from Iwate, with a rich history spanning 900 years. It possesses a simple and warm texture that becomes more distinct with each use. Boiling water in the iron bottle enriches it with bivalent iron, which is easily absorbed by the body and effective for iron supplementation.For the initial use, lightly rinse the inside of the iron bottle and boil water for about 15 minutes. It may take a few cycles for the boiling water to become colorless, as it may appear cloudy at first.Even if the iron bottle has been unused for a long time, follow the same procedure when resuming use. After each use, ensure to empty any remaining hot water and let it dry completely in an empty state.To enhance the effects, when hot water becomes cloudy after several uses, fill the bottle with water up to the eighth-minute mark, and add tea, such as sencha, allowing it to steep for about 15 to 20 minutes. This process measures the chemical reaction of tannin and iron. Repeating this 2-3 times can increase its efficacy.After these steps, rinse and boil water 1-2 times before using the iron bottle. Size / W21xD17.5xH20 (CM) Weight / approximately 2.1 kg MARD MODE CAUTION: about 1.5L