8 Things You Should Never Store Under Your Sink

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Frequently Asked Questions

What items are actually safe to store under the sink?

The golden rule for under-sink storage is to only include items that are inherently waterproof or essential for the immediate area. Dish soap, dishwasher detergent pods (stored in child-proof, airtight containers), plastic scrub brushes, and heavy-duty silicone cleaning gloves are perfectly safe. You can also safely keep a small, waterproof trash can and a compact fire extinguisher near the front of the cabinet for emergencies. Place all cleaning items inside a solid plastic caddy so that if a bottle leaks, the spill is contained entirely within the tray.

How do I manage light levels when storing my plant supplies elsewhere?

When you relocate your organic plant amendments and liquid fertilizers away from the sink, you must find a storage location that mimics a dormant environment. High light levels trigger algae blooms in clear bottles of liquid nutrients and can cause moisture-trapped soil bags to sweat. Dedicate a shelf in an opaque hallway closet or a windowless laundry room. Keep your fertilizers in solid, non-transparent bins to block out ambient room light, ensuring your plant care arsenal remains potent and ready for your regular watering cadence.

How can I monitor plumbing safety once my cabinet is organized?

The best defense against silent water damage is a clear line of sight and proactive technology. Once you have cleared out the cardboard boxes and heavy appliances, place a battery-operated water leak detector flat on the floor of the cabinet, directly beneath the P-trap. These inexpensive smart devices will sound a loud alarm—or send a notification to your smartphone—the moment they detect pooling moisture, allowing you to address a dripping pipe long before it ruins your cabinetry or subfloor.