Aluminium trays, like that: https://www.emballagefute.com/img/plat-a-four-alu-sertissable.jpg https://www.emballagefute.com/img/plat-a-four-alu-sertissabl.... Y

Aluminium trays, like that: https://www.emballagefute.com/img/plat-a-four-alu-sertissable.jpg https://www.emballagefute.com/img/plat-a-four-alu-sertissabl.... Yes, it’s non-reusable, pick your poison :/.