A method and apparatus for changing all or part of the skinsheet of a rotary drum blancher/cooler from being clean in place totally removable is disclosed. The drum includes the skinsheet (in sections) with a plurality of clamps and catches. Each catch is comprised of two catches—a clean in place catch and a totally removable catch. Each clamp is attached to a section and has an clamping position and a release position, and includes a bail. When a clamp is in the clamping position and its bail is in either the clean in place catch or the totally removable catch of a corresponding catch on an adjacent second section, the catch and clamp hold the adjacent sections together to form a part of the drum. When the clamp is in the release position and the bail is in the clean in place catch of the adjacent section, the clamp and clean in place catch allow adjacent sections to separate, but do not allow them to be removed.