![How to get this black stuff off my rubber bottle seal? I've tried soaking it in hot water and using a knife to try and scrape it off, but nothing's worked : How to get this black stuff off my rubber bottle seal? I've tried soaking it in hot water and using a knife to try and scrape it off, but nothing's worked :](https://preview.redd.it/how-to-get-this-black-stuff-off-my-rubber-bottle-seal-ive-v0-5rkntbesn8na1.jpg?auto=webp&s=798cbf7efe84d7340594a63fb9eee66e76c30174)
How to get this black stuff off my rubber bottle seal? I've tried soaking it in hot water and using a knife to try and scrape it off, but nothing's worked :
María Cristina Peláez holds up a bottle of a dark brown liquid. It looks like Coca-Cola and smells like sewage. This is the water that ... | Instagram
![Bottle of the Isotonic energy drink with brown liquid covered by dew. Sport beverage isolated on white background. Stock Photo | Adobe Stock Bottle of the Isotonic energy drink with brown liquid covered by dew. Sport beverage isolated on white background. Stock Photo | Adobe Stock](https://as2.ftcdn.net/v2/jpg/04/54/54/81/1000_F_454548159_NRsneHwFgxgTtj3blyDovXhABL2eKTcp.jpg)