My glaze has settled. Does it matter?

Glaze settling may result in firing problems so it is always recommended that you thoroughly mix your glaze before use. When a glaze settles, some of the components of the glaze collect in the bottom of the container so your glaze will be missing potentially key elements if you fail to mix them in before using.
Settling can be caused by adding too much water, or by the growth of bacteria in the glaze, which can lead to loss of suspension. To prevent bacterial growth, do not introduce possibly contaminated objects such as brushes into the storage container or return used glaze to the storage container.
Glazes should be stored in a cool dark place to prolong its life.