Electric Steam Cleaners

Frequently Asked Questions
When you steam clean, the high-temperature steam loosens the dirt, grime, and soil from the surface, which is then typically wiped away with a microfiber cloth or absorbed by the machine's integrated vacuum or mop pad.
Manufacturers generally advise against adding anything to the water in a steam cleaner, as most machines are designed to operate using only plain distilled water; adding chemicals, soaps, or other solutions can void the warranty and cause internal damage or mineral buildup.
You can cautiously run diluted white vinegar through your steamer only as a descaling solution to remove internal mineral buildup, not as a general cleaning agent, provided the manufacturer's guidelines explicitly allow it.
The best solution to use in a steam cleaner for general operation is plain distilled water, which prevents mineral buildup in the internal components and ensures the machine functions correctly.
Yes, a steam cleaner can be safely used on shower glass to effectively loosen soap scum, remove grime, and kill bacteria, which makes the glass easier to wipe clean with a squeegee or cloth.
The black stuff in a steamer is likely a combination of mineral deposits from tap water reacting with internal metal components, the accumulation of dirt and grime picked up during cleaning, or mold/mildew buildup from improper drying and storage after use.