If you have a bad sourdough starter and want to get rid of it, there are a few steps you can follow to discard it properly:
Remove any remaining active starter from the container: If you have any active sourdough starter in your container, remove it and set it aside. You can use this portion to maintain or build a new, healthy starter if desired.
Empty the container: Pour out any leftover starter in the container, including any residue on the sides.
Clean the container: Wash the container with hot, soapy water to remove any remaining traces of the bad starter. Rinse it thoroughly to ensure it's clean and free from any lingering bacteria.
Discard the starter: To ensure the bad starter is no longer active, it's best to discard it in a way that it won't be able to ferment or continue growing. One effective method is to mix the remaining starter with a significant amount of organic waste (e.g., used coffee grounds, vegetable scraps) or non-toxic materials (e.g., sawdust, paper) that will prevent it from being used for any other purposes.
Consider composting: If you have a compost bin, you can add the discarded starter mixture to it. The composting process will break down the starter and other organic materials, rendering them harmless.
Wash your hands and tools: After handling the bad starter and cleaning up, wash your hands thoroughly and clean any utensils or tools you used during the process.
By following these steps, you can safely and responsibly dispose of a bad sourdough starter and prevent it from affecting any new starters or other baking projects. If you decide to start a new sourdough starter, make sure to follow a reliable recipe and care routine to maintain a healthy and active starter.