Method for collecting metal scrap (42, 52, 92), in particular aluminum scrap, in collecting containers (44, 82, 84, 86), - in which, at one or more production scrap accrual points of a production plant (32, 72), first metal scrap of a first material processed in the production plant (32, 72), the first material having a predetermined first composition, and second metal scrap of a second material processed in the production plant (32, 72), the second scrap having a predetermined second composition, accrues, - in which a first quantity of the first metal scrap of the first material and a second quantity of the second metal scrap of the second material are fed to a collecting container (44, 82, 84, 86) and collected therein, and - in which a first quantity information ( m 1) on a measure of the first quantity of the first metal scrap of the first material and a second quantity information ( m 2) of a measure of the second quantity of the second metal scrap of the second material are determined, characterised - in that a collecting container composition information ( {C x}) on the composition of the total metal scrap collected in the collecting container (44, 82, 84, 86) is calculated as a function of a predetermined first composition information ( {c x,1}) on the first composition of the first material, a predetermined second composition information ( {c x,2}) on the second composition of the second material and of the first ( m 1) and the second quantity information and - in that the collecting container composition information ( {C x}) is compared with a predetermined composition specification and the feeding of scrap metal (42, 52, 92) into the collecting container (44, 82, 84, 86) is interrupted as soon as the comparison shows that the composition specification is no longer fulfilled. - in which, at one or more production scrap accrual points of a production plant (32, 72), first metal scrap of a first material processed in the production plant (32, 72), the first material having a predetermined first composition, and second metal scrap of a second material processed in the production plant (32, 72), the second scrap having a predetermined second composition, accrues, - in which a first quantity of the first metal scrap of the first material and a second quantity of the second metal scrap of the second material are fed to a collecting container (44, 82, 84, 86) and collected therein, and - in which a first quantity information ( m 1) on a measure of the first quantity of the first metal scrap of the first material and a second quantity information ( m 2) of a measure of the second quantity of the second metal scrap of the second material are determined, characterised - in that a collecting container composition information ( {C x}) on the composition of the total metal scrap collected in the collecting container (44, 82, 84, 86) is calculated as a function of a predetermined first composition information ( {c x,1}) on the first composition of the first material, a predetermined second composition information ( {c x,2}) on the second composition of the second material and of the first ( m 1) and the second quantity information and - in that the collecting container composition information ( {C x}) is compared with a predetermined composition specification and the feeding of scrap metal (42, 52, 92) into the collecting container (44, 82, 84, 86) is interrupted as soon as the comparison shows that the composition specification is no longer fulfilled.