• Sonett Decalcifier 1 Liter
Sonett Decalcifier 1 Liter

Sonett Decalcifier 1 Liter

  • Removes stubborn hard water deposits from fittings, tiles, washbasins, toilets
  • Descales dishwashers, washing machines, coffeemakers and water boilers
(€3.00 /1000 ml)
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Product feature

Citric acid is more suitable than other acids for versatile decalcification in the kitchen and sanitary area due to its quality as a food ingredient, its restrained odour and its gentle effect on metals and plastics.

Area of application

The limescale remover can be used effectively wherever heavy limescale deposits occur.


The limescale remover can be used effectively wherever heavy limescale deposits occur on fittings, tiles, toilets, cooking pots, coffee machines, washing machines, etc.

Use undiluted 

For fittings, tiles, toilets - where the limescale remover cannot be heated - let it work for a few minutes, depending on the limescale layer, then rinse thoroughly with clear water. 

Use diluted

In cooking pots and for decalcifying machines - where the acid can be heated and is therefore more effective. 

Dosage for kettles

Heat approx. 100 ml per 0.5 litres of water to approx. 60 °C, leave to soak for 20 to 30 minutes and rinse well.  

Dosing coffee maker

Add 200 ml limescale remover and 800 ml water to the water reservoir of the coffee machine. Descale according to the machine's instructions for use. A subsequent pass with clear water is absolutely necessary - until the water is clear. 

Dosage 4.5 kg washing machine

Add 1 litre of limescale remover to the 60 °C main wash cycle without laundry. Run the wash cycle and clean the lint filter. 

Dishwasher dosage

Add 1 litre of limescale remover to the main wash cycle of the longest rinse cycle (after pre-rinse!) - without or with dishes. Run the programme to the end.

Product declaration

Citric acid 15-30 

Vegetable alcohol (ethanol) 5-15% 

Water, whirled ad 100%

List of ingredients according to EC 648/2004

Aqua, Citric Acid, Alcohol

Hazard symbol 


Contains food grade citric acid. Causes severe eye irritation. If medical advice is needed, have packaging or label at hand. Keep out of the reach of children. Wear eye protection. In case of contact with eyes: Rinse cautiously with water for several minutes. Remove contact lenses if possible. If eye irritation persists: Seek medical advice / attention. Dispose of contents / container in accordance with local / national regulations. 

Origin and properties of ingredients

The raw material for the extraction of citric acid are by-products from the sugar industry such as molasses. During the decalcification process, citric acid acts in its general capacity as an acid on the precipitated limestone and dissolves it again, producing carbon dioxide.

Technical data

Density: (20 °C) approx. 1.07 g / cm³ 

pH value: (20 °C, 5 g / l H₂O) approx. 3-4

Store between 10 and 25°C if possible.

1 Item
1 l

Specific References