10 Surprising Things You Should Never Pour Down the Drain

Flours

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The Risks of Dumping Flour Down the Drain Flour is common in cooking, but it should never go down the drain. When flour meets water, it creates a thick, gluey paste that clings to pipes.

This sticky mess can trap other food and waste, forming a dense clog over time. Combined with grease, it can cause severe blockages that slow or stop water flow, often needing a plumber.

Even small amounts of flour can build up, raising the risk of clogs. Find safer ways to get rid of flour to avoid plumbing headaches.