A keg interlay for stacking kegs, comprising a) a planar base structure and b) at least one connecting structure which projects from the base structure and exhibits c) a first diameter which is larger than an outer diameter of a keg (K1, K2) at a first end and d) a second diameter which is defined on the other side of the connecting structure and is larger than the first diameter and smaller than an outer diameter of the keg (K1, K2) at its second end, e) wherein the connecting structure is disc-shaped and projects substantially perpendicularly from the base structure, and f) the connecting structure comprises first circumferential portions exhibiting the diameters (D1, D2) and second circumferential portions exhibiting a third diameter or fourth diameter, respectively - depending on whether the keg interlay is observed from the upper side or the lower side - along an inner circumference, wherein the third and fourth diameter (D3, D4) are smaller than the first and second diameter (D1, D2), wherein the first circumferential portions exhibit a height which corresponds to the height of a disc periphery, and the second circumferential portions exhibit a height which corresponds to a part of the height of the disc periphery, and the circumferential portions (7, 11) extend between the base structure and a disc base, and g) the disc periphery comprises a first region adjoining the base structure and exclusively exhibiting the first and second diameter (D1, D2), and a second region adjoining the first region in the direction of the disc base and comprising at least one circumferential portion exhibiting the first and second diameter (D1, D2) and at least one circumferential portion exhibiting the third and fourth diameter (D3, D4). a) a planar base structure and b) at least one connecting structure which projects from the base structure and exhibits c) a first diameter which is larger than an outer diameter of a keg (K1, K2) at a first end and d) a second diameter which is defined on the other side of the connecting structure and is larger than the first diameter and smaller than an outer diameter of the keg (K1, K2) at its second end, e) wherein the connecting structure is disc-shaped and projects substantially perpendicularly from the base structure, and f) the connecting structure comprises first circumferential portions exhibiting the diameters (D1, D2) and second circumferential portions exhibiting a third diameter or fourth diameter, respectively - depending on whether the keg interlay is observed from the upper side or the lower side - along an inner circumference, wherein the third and fourth diameter (D3, D4) are smaller than the first and second diameter (D1, D2), wherein the first circumferential portions exhibit a height which corresponds to the height of a disc periphery, and the second circumferential portions exhibit a height which corresponds to a part of the height of the disc periphery, and the circumferential portions (7, 11) extend between the base structure and a disc base, and g) the disc periphery comprises a first region adjoining the base structure and exclusively exhibiting the first and second diameter (D1, D2), and a second region adjoining the first region in the direction of the disc base and comprising at least one circumferential portion exhibiting the first and second diameter (D1, D2) and at least one circumferential portion exhibiting the third and fourth diameter (D3, D4).