Abstract: A baffle is set forth for use within fluid containers or vessels. The baffle comprises a ribbon of resilient material that is formed in a pleated configuration that may be compressed circumferentially at a top end edge, a bottom end edge, or at both ends to facilitate insertion within a wide variety of vessel sizes and shapes. The ribbon of material is resilient and of sufficient rigidity to maintain a number of axial cells throughout compression of the ribbon. The ribbon and cells thereby when placed adjacent the surface of the liquid within the container act to minimize turbulence within the container and thereby minimize spillage when the container is jolted. The baffle inserts are shaped to be nested, one in another, for storage and ultimate dispensing.