An item produced by thermoforming, comprising: i) from 45 to 59% by weight, based on the total weight of components i to iv, of a biodegradable polyester comprising: i-a) from 90 to 100 mol%, based on components a to b, of succinic acid; i-b) from 0 to 10 mol%, based on components a to b, of one or more C 6 -C 20 dicarboxylic acids; i-c) from 98 to 102 mol%, based on components a to b, of 1,3-propanediol or 1,4-butanediol; i-d) from 0.05 to 1% by weight, based on components a to c, of a chain extender or branching agent; ii) from 5 to 14% by weight, based on the total weight of components i to iv, of an aliphatic-aromatic polyester comprising: ii-a) from 30 to 70 mol%, based on components ii-a to ii-b, of a C 6 -C 18 -dicarboxylic acid; ii-b) from 30 to 70 mol%, based on components ii-a to ii-b, of terephthalic acid; ii-c) from 98 to 100 mol%, based on components ii-a to ii-b, of 1,3-propanediol or 1,4-butanediol; ii-d) from 0.05 to 1% by weight, based on components a to c, of a chain extender or branching agent; iii) from 15 to 24% by weight, based on the total weight of components i to iv, of polylactic acid; iv) from 10 to 35% by weight, based on the total weight of components i to iv, of at least one mineral filler; where the following applies to the compounded material comprising components i to iv: the ratio of component i to component iii in the compounded material is from 2.2 to 3.2, and the MVR of the compounded material is from 1 to 10 cm 3 /10 min in accordance with DIN EN 1133-1 of March 1, 2012 (190°C, 2.16 kg). i) from 45 to 59% by weight, based on the total weight of components i to iv, of a biodegradable polyester comprising: i-a) from 90 to 100 mol%, based on components a to b, of succinic acid; i-b) from 0 to 10 mol%, based on components a to b, of one or more C 6 -C 20 dicarboxylic acids; i-c) from 98 to 102 mol%, based on components a to b, of 1,3-propanediol or 1,4-butanediol; i-d) from 0.05 to 1% by weight, based on components a to c, of a chain extender or branching agent; i-a) from 90 to 100 mol%, based on components a to b, of succinic acid; i-b) from 0 to 10 mol%, based on components a to b, of one or more C 6 -C 20 dicarboxylic acids; i-c) from 98 to 102 mol%, based on components a to b, of 1,3-propanediol or 1,4-butanediol; i-d) from 0.05 to 1% by weight, based on components a to c, of a chain extender or branching agent; ii) from 5 to 14% by weight, based on the total weight of components i to iv, of an aliphatic-aromatic polyester comprising: ii-a) from 30 to 70 mol%, based on components ii-a to ii-b, of a C 6 -C 18 -dicarboxylic acid; ii-b) from 30 to 70 mol%, based on components ii-a to ii-b, of terephthalic acid; ii-c) from 98 to 100 mol%, based on components ii-a to ii-b, of 1,3-propanediol or 1,4-butanediol; ii-d) from 0.05 to 1% by weight, based on components a to c, of a chain extender or branching agent; ii-a) from 30 to 70 mol%, based on components ii-a to ii-b, of a C 6 -C 18 -dicarboxylic acid; ii-b) from 30 to 70 mol%, based on components ii-a to ii-b, of terephthalic acid; ii-c) from 98 to 100 mol%, based on components ii-a to ii-b, of 1,3-propanediol or 1,4-butanediol; ii-d) from 0.05 to 1% by weight, based on components a to c, of a chain extender or branching agent; iii) from 15 to 24% by weight, based on the total weight of components i to iv, of polylactic acid; iv) from 10 to 35% by weight, based on the total weight of components i to iv, of at least one mineral filler;