All Kimura glassware is hand-made, therefore there may be differences among items. Small bubbles and minor contamination are unavoidable.
Avoid placing in microwave, electric/gas oven or dishwasher and do not expose to open flame.
Do not use strong detergents or scour when washing as it may cause scratches and damage on the surface of glassware. After washing, please wipe glasses immediately or white marks may appear due to the calcium in the water.
Avoid pressuring, sudden heating and cooling, which may cause damages and break the glassware. Do not pile glassware when storing.