System for providing mineral-containing drinking water

A method for preparing mineral-containing drinking water in a second container using a mineral-concentrated liquid composition stored in a first container, wherein

• the first container stores 1 to 10 mL of the single-use mineral-concentrated liquid composition to be used at a dilution rate of 10 to 1000 times and pressurized gas, is configured to be attachable as a lid for the second container, and to enable the mineral-concentrated liquid composition in the first container to be spouted into the second container after attachment of the first container as the lid for the second container, and
• the second container has a capacity of 1 to 3 L, and can store water in a volume ranging from 1 to 3 L and obtained by multiplying volume of the mineral-concentrated liquid composition by the dilution rate, the method comprising:
• filling the second container with water in an amount necessary for achieving the dilution rate of the mineral-concentrated liquid composition;
• and
• spouting the mineral-concentrated liquid composition in the first container into the second container filled with the water after attachment of the first container as the lid for the second container.