1. Product Overview
The WoldoClean descaler is a highly effective 2-in-1 liquid solution designed for cleaning and descaling fully automatic coffee machines, espresso machines, and other household appliances. Formulated with amidosulfonic acid and citric acid, it reliably removes limescale and actively protects sensitive components of your machine, extending its service life. This universal lime remover is odorless and leaves no residues, ensuring a clean and hygienic interior.
Key Features:
- 2-in-1 liquid descaler for comprehensive cleaning and descaling.
- 750 ml bottle provides enough solution for 6 applications (125 ml each).
- Contains amidosulfonic acid, citric acid, and corrosion inhibitors for effective limescale removal and machine protection.
- Extends the interval between descaling processes, improving machine performance and coffee flavor.
- Suitable for all device types, including fully automatic coffee machines, filter coffee makers, and capsule machines.
- Material-friendly, odorless, gentle formula, and residue-free.

Image 1: WoldoClean Coffee Machine Descaler 750ml bottle, highlighting its 2-in-1 cleaning and descaling properties, suitable for coffee and espresso machines, and providing 6 uses.

Image 2: Visual representation of the descaler's extra strong cleaning formula, emphasizing its material-friendly, odorless, gentle, and residue-free properties.

Image 3: The descaler is shown to be compatible with various coffee machine types, including fully automatic, espresso, filter, and capsule machines, providing 6 uses of 125ml each.
2. Safety Information
Always handle chemical products with care. Read all warnings before use.
Important Warnings:
- Causes severe skin burns and eye damage.
- Keep out of reach of children.
- Do not breathe mist/vapors/spray.
- Wear protective gloves/protective clothing/eye protection/face protection.
First Aid Measures:
- IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
- IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
- IF INHALED: Remove person to fresh air and keep comfortable for breathing. If ill effects occur, call a POISON CENTER/doctor.
- IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
- Immediately call a POISON CENTER/doctor.
- Wash contaminated clothing before reuse.
- Store locked up.
- Dispose of contents/container to hazardous or special waste collection points.

Image 4: The back label of the WoldoClean descaler bottle, showing detailed usage instructions in multiple languages and important safety warnings and pictograms.
3. Ingredients
The WoldoClean descaler is primarily based on amidosulfonic acid and citric acid. It is unscented and contains a color indicator for repeated use. The liquid is clear with a dye and has an acidic pH value.
It is formulated to be fully water soluble and gentle on rubber and seals, incorporating an anti-corrosion inhibitor to protect your appliances.
4. Setup
Before starting the descaling process, ensure your coffee machine is turned off and cooled down. Empty any remaining water from the water tank and remove any coffee grounds or capsules from the machine. Prepare a container to collect the descaling solution that will be dispensed during the process.
5. Operating Instructions
Descaling Process for Coffee Machines:
- Prepare the Solution: Mix 125 ml of WoldoClean descaler with 500 ml of clean water. The bottle has a practical measuring scale for easy and precise dosing.
- Add to Water Tank: Pour the prepared descaling solution into the water tank of your coffee machine.
- Start Descaling Program: Initiate the descaling program on your coffee machine according to the manufacturer's instructions for your specific model. If your machine does not have an automatic descaling program, run several cycles of hot water through the machine until the water tank is empty.
- Rinse Thoroughly: After the descaling program is complete, rinse the device thoroughly with clean, fresh water. Fill the water tank with clean water and run at least 2-3 full cycles to ensure all descaler residue is removed.
Refer to your specific coffee machine's user manual for detailed instructions on how to activate its descaling program.
6. Maintenance
For optimal performance and to significantly extend the lifespan of your coffee machine, it is recommended to repeat the descaling process regularly. A general guideline is to use the descaler every 2-3 months, or as indicated by your device's descaling prompt.

Image 5: The recommended cleaning cycle for the descaler is every 2 months, or when the device prompts, highlighting its power against lime and gentleness on the machine.
7. Versatile Household Applications
Beyond coffee machines, WoldoClean descaler is a universal solution for various household appliances. It can be effectively used for descaling kettles, irons, and even washing machines, providing powerful descaling for kitchen and bathroom needs. The recommended dilution ratio for general household descaling is 1 part descaler to 4 parts water.

Image 6: The descaler is shown to be versatile for household use, including descaling shower heads, kettles, and irons, with a recommended dilution of 1 part descaler to 4 parts water.
8. Troubleshooting
While WoldoClean descaler is highly effective, if you encounter issues during or after the descaling process, consider the following:
- Limescale Remains: If significant limescale is still present after one cycle, it may indicate a heavy build-up. Repeat the descaling process. For very stubborn deposits, a slightly stronger concentration (e.g., 1:3 descaler to water) might be used, but always test on an inconspicuous area first and rinse thoroughly.
- Machine Not Functioning: Ensure the descaling program was completed correctly and the machine was thoroughly rinsed. Refer to your machine's specific manual for error codes or troubleshooting steps related to descaling.
- Unusual Odor/Taste: This indicates insufficient rinsing. Run several more cycles with clean water until the water runs clear and any odor is gone.
For persistent issues, consult your appliance's manufacturer manual or contact their customer support.
9. Product Specifications
| Specification | Detail |
|---|---|
| Product Name | Liquid Descaler 750ml |
| Brand | WoldoClean |
| Item Model Number | 8091 |
| Volume | 0.75 Litres (750 millilitre) |
| Item Form | Liquid |
| Scent | Unscented |
| Specific Uses for Product | Coffee Maker, Washing Machine, Kettle, Iron |
| Material Feature | Fully Water Soluble, Floating Shape, Odorless, Clear with Dye, Acidic pH, Suitable For All Brands And Device Types, Gentle on rubber and seals, With anti-corrosion inhibitor, Highly concentrated and productive, Residue-free use |
| Surface Recommendation | Iron |
| Product Dimensions | 7 x 7 x 20 cm; 748.43 g |
| Manufacturer | WoldoClean Delonghi |
| Country of Origin | Deutschland |
10. Support & Resources
For further detailed instructions and multilingual guides, you can scan the QR code on the product packaging or visit the official WoldoClean website.

Image 7: The product packaging displaying a QR code and a link to scan for instructions in multiple languages (US, DE, GB, FR, IT, ES, NL, SE).
An official PDF instruction manual is available online:





