Abstract: Apparatus for cutting open and cleaning the stomachs of small animals such as poultry comprises a conveying wheel, which has around its periphery chambers for holding said stomachs, means for feeding said stomachs to said chambers, a knife which extends into the path of movement of said chambers for cutting open said stomachs and a device for cleaning said stomachs after they have been cut open. Said wheel includes means for decreasing and increasing the sizes of said chambers as the wheel rotates, said chambers decreasing in size as they move away from said feeding means towards said knife whereby said stomachs are compressed in said chambers as they reach said knife. Divider means is provided downstream of said knife in the direction of movement of said chambers for prizing open said stomachs and removing hard skin from within said stomachs.