You can use tile, granite, reclaimed wine barrel flooring or cork.
Should it come into contact with anything that it should not, the entire contents end up being dumped along with the process started a new. https://stewplant7.bloggersdelight.dk/2024/06/05/ruou-cognac-bieu-tuong-cua-viec-quy-phai-va-tinh-xao/