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Short answer: Day to day, warm water, a soft cloth and drying are enough. Remove limescale with diluted vinegar. Never use bleach, abrasive pastes or steel wool. Each material has its own manufacturer cleaner.
Stainless steel sinks
- Daily: wash and dry the sink to avoid water marks and rainbow stains.
- Don’t leave wet cloths, plastic washing-up bowls, salt, vinegar, citrus or mustard in the sink.
- Avoid: bleach, steel wool, abrasives and silver cleaners.
- Hard water: Franke Twister cleaning paste (125 ml with sponge) prevents a matt limescale film. Use the soft side of the sponge.
In stock: Franke Twister, Blanco Polish.
PVD-coated (coloured) sinks
PVD is a thin, hard metallic layer on stainless steel.
- Wash with a soft cloth and mild washing-up liquid.
- Remove limescale with diluted vinegar.
- Never use abrasive pastes, powders or scouring pads.
This is Franke’s official guidance for PVD tap surfaces. Check your sink’s manual for its exact instructions.
Composite / granite sinks (Silgranit, Fragranite, Tectonite)
- Daily: rinse and wipe dry.
- Limescale first: Blanco stresses that dirt sticks to limescale. Vinegar usually works: for Franke Tectonite, use 1 part vinegar to 3 parts water, leave it for several hours, then rinse.
- Metal marks from pans: Blanco suggests a wet sponge with a few drops of cooking oil.
- Avoid: chlorine bleach, drain cleaners, solvents and metal sponges. Blanco rules out bleach even when diluted.
- Hot pans: let them cool a little first.
- Manufacturer cleaners: the Blanco DeepClean Silgranit set, and Franke Colored Sink Cleaner, which also protects against water stains.
Ceramic sinks
- Daily: a microfibre cloth and warm water.
- Limescale: vinegar or a lemon-based cleaner.
- Metal marks: Systemceram BioTopp, Blanco Ceracare or a liquid stainless cleaner.
- Scratch or metal mark? Use Systemceram’s fingernail test: run a fingernail over the mark. If it catches, it’s a scratch. If it doesn’t, it’s a metal mark that a cleaner will remove.
- Heat-resistant: Systemceram fires its sinks at 1240 °C, so hot pans won’t harm them.
- Avoid: concentrated drain cleaners, abrasives and fluoride products (rust removers, toothpaste). Never mix cleaners.
Summary
| Material | Daily | Limescale | Avoid |
|---|---|---|---|
| Stainless steel | wash + dry | Franke Twister | bleach, steel wool |
| PVD | soft cloth | diluted vinegar | abrasive pastes |
| Composite / granite | rinse + dry | vinegar 1:3 | chlorine, metal sponges |
| Ceramic | microfibre cloth | vinegar / lemon | drain cleaner, fluoride |
Sink accessories and cleaners · Kitchen sink buying guide
FAQ
What should I clean a granite sink with?
Water and a cloth day to day. Remove limescale with diluted vinegar and use the manufacturer’s cleaner from time to time (Blanco DeepClean, Franke Colored Sink Cleaner). Never use bleach.
How do I remove limescale from a stainless steel sink?
With Franke Twister cleaning paste, and by drying the sink after each use.
Can I put a hot pan in a ceramic sink?
Yes. Ceramic withstands high temperatures.