The electric kettle has become an essential appliance in modern homes. Its speed, convenience, and practicality make it the perfect tool for heating water without relying on a stove. However, many people are unaware that improper use can damage the appliance—or even affect their health.

Seemingly harmless habits can reduce the kettle’s lifespan or create real risks. Below are the most common mistakes people make with electric kettles and the best ways to avoid them.

1. Leaving Water Inside After Use

Failing to empty the kettle once the water has cooled is a frequent mistake. Stagnant water encourages limescale buildup, bacterial growth, and unpleasant odors. Over time, it can also corrode internal components.

Tip: Always pour out any leftover water and leave the lid open to let the kettle dry.

2. Boiling the Same Water Repeatedly

Reheating water again and again may seem convenient, but it worsens water quality. Each boil concentrates minerals and trace compounds like nitrates and arsenic, which—though usually harmless in small amounts—can become less safe over time.

Tip: If you don’t use the boiled water, discard it and refill with fresh water before heating again.

3. Choosing Poor-Quality Materials

Not all kettles are created equal. Low-quality plastic kettles may release harmful chemicals like BPA when exposed to high heat, altering both taste and safety of the water.

Tip: Opt for stainless steel or tempered glass kettles from reputable brands. Check for food-safe certifications before purchasing.