Final answer:
The statement is false because to make a shell border in cake decorating, you generally use a star-shaped tip, not a plain tube, to create the ridged texture of shells.
Step-by-step explanation:
True or False? To make a shell border, you need a pastry bag with a plain tube. This statement is false. A shell border is a traditional decoration in the art of cake decorating, and it requires a specialized piping technique to create.
While a plain tube can be used for many different purposes in decorating, a shell border is typically created with a star-shaped tip to give the shells their characteristic ridged texture and appearance.
The technique involves squeezing the pastry bag to form a base and then easing the pressure as you pull the bag away, producing a tail that resembles a shell. In summary, a plain tube would not typically be used to make a traditional shell border; the correct tool is a star-shaped tip.