Hard water stains on blown glass vases are often the result of soap scum. Unfortunately, soap scum remover cannot remove hard water stains. High concentrations of soluble minerals such as calcium and magnesium in hard water are not things that can be easily treated with sprays. Hard water will make your favorite cleaner lose its effectiveness. Use acidic cleaners to deal with these hard waters. For example, trying harsh chemicals such as vinegar and baking soda may help. machine glass vase is best if the problem can be solved smoothly, otherwise you can also try a cleaner specially used to remove dirt on the cooktop to remove hard water stains.

Mix vinegar and baking soda to make a paste. This natural solution is a cheap natural formula that can remove hard water stains from glass vases.

Use the sponge to circulate and apply the paste to the water stain and let it stay for 15 minutes.

Use a damp towel to wipe off the paste and use a rubber roller to remove excess water. If you are lucky, this method is enough to make hard water stains disappear. But if it is water stains that have existed for many years, more cleaning measures may be needed.

Dip a sponge in a liquid stove cleaner to remove hard water stains. Allow the liquid to dry for 15 minutes and then use a cloth to polish the cleaner. This will usually remove water stains. You need to repeat this process every 6 months to avoid re-accumulation.

Don't try to use sandpaper to remove hard water stains, which will scratch the surface of the copper ring glass vases.