Flowers are beautiful, but over time water in vases can leave deposits. DYC Vinegar and rice grains work well to clean vases and a chopstick is also handy for small vases or hard to reach places.
DYC White Vinegar
Pour DYC White vinegar into vase and leave to stand for 10-15 minutes.
Add rice grains and shake or use a chop stick to swirl around rice grains.
Rinse with water.