Crackle glazes are for decoration only and are not recommended for use on food or any container that will be exposed to water.
If, after several months, you notice that you have more cracks in a piece that have not been filled with antiquing when using a crackle glaze, you can go back over the piece to accent them.
Crackle glazes may have a tendency to drag when applied, but can be smoothed out with a coating of water on your brush after applying.
Contrary to most other glazes, crackle glazes only require two coats in application.
The crackle effect of a crackle glaze begins to develop even before you remove pieces from the kiln and will continue long afterwards.