What Is an Icing Coupler

A two-part device called a coupler lets you use different decorating tips with the same bag of icing, creating several designs with the same color and consistency.

What is a icing bag coupler?

A coupler is a two-part plastic device that lets you swap out the piping tip for another one without changing the piping bag. One plastic piece gets inserted into the bag and then the outside ring — holding the pastry tip itself — gets screwed in from the outside.

Is a coupler necessary?

Using a coupler allows you to change the decorating tip without changing the pastry bag. Do I always need one? No, if you are using different colors of icing, it would be easier to have different pastry bags, so no coupler is needed. Just drop the tip into the bottom of the bag.