No dumping sourdough starter down your drains! Heres How to properly clean your sourdough dishes…It is a big no-no to put any sourdough down your drains. Dough hardens and turns into concrete in your pipes so this is how I avoid putting it down my drain.First- Any discard or access starter you’re getting rid of goes into the trashcan, not down the drain.Second- I wipe off all spatulas, spoons, bowls, and bowl scrapers with a disposable paper towel before putting it into the sink to wash. Third-