A shirred fibrous food casing defines a shirred stick formed from a
tubular fibrous casing. The shirred stick includes an average outside
diameter at least 120% of the average inflated diameter of the deshirred
casing. Additionally, the shirred stick includes an average inside
diameter of at least 70% of the casing inflated diameter and a pleat
pitch defined as the distance between adjacent apexes of major pleats
measured on the casing after the shirred stick is deshirred.