Acto Anti-Calc Descaler Solution is a 16.9 fl oz (500 mL) bottle of concentrated liquid descaler for espresso machines, capsule and pod coffee makers, drip machines, and kettles. Dosed at 100 mL per liter of water, one bottle gives about five descaling cycles, and the formula dissolves limescale without harming seals or pipes. It is available as a single bottle or in packs of 3 and 6, shipped fast from New Jersey.
Acto Anti-Calc 500 mL: Universal Coffee Machine Descaler for About Five Cycles
- About 5 descaling cycles per bottle — dose 3.38 fl oz (100 mL) per 1 liter of water; the 16.9 fl oz (500 mL) bottle covers most of a year
- Dissolves limescale — clears mineral deposits from the boiler, heating element, and pipes that slow brewing and cool the water
- Universal compatibility — for automatic and manual espresso machines, capsule and pod brewers, drip coffee makers, and kettles
- Protects coffee flavor — a scale-free machine heats correctly and brews without the flat, bitter taste limescale causes
- Gentle on machine parts — formulated to be safe for seals, gaskets, and internal components; made in Germany by ACTO GmbH
- Pack options — Single bottle, Pack of 3 (1.5 L), and Pack of 6 (3 L)
How to Use
Measure 100 mL of Acto Anti-Calc using the bottle's markings, pour it into the empty water tank, and add fresh water to about 1 liter. Run your machine's descaling program, or brew the solution through in stages with pauses, until the tank is empty. Rinse the tank and flush with at least two tanks of clean water before making coffee. Descale every 2 to 3 months, or monthly with hard water. Store the capped bottle upright at room temperature, out of reach of children.
About Acto
ACTO GmbH is a German company that develops hygiene, disinfection, and appliance-care products for households and professional users. Its Anti-Calc descaler is a lactic acid based, biodegradable formula made to dissolve limescale in espresso machines, capsule and pod machines, drip coffee makers, and kettles without harming seals or internal parts, and it is sold across Europe under the ACTO name. Find more cleaning and appliance-care products in our Health & Household collection, or learn more at actogmbh.com.
Frequently Asked Questions
Which coffee machines is Acto Anti-Calc compatible with?
Acto Anti-Calc is a universal descaler for fully automatic and manual espresso machines, capsule and pod brewers, drip and filter coffee makers, and electric kettles. It replaces the manufacturer-branded descalers most machines specify. Always follow the descaling steps in your machine's manual, because some brands call for a specific program, dose, or number of rinse cycles.
How much Acto Anti-Calc do I use per cycle?
Use 3.38 fl oz (100 mL) of solution per 1 liter of fresh water, poured into the empty tank, then run the descaling program or brew the mixture through in stages. Rinse and flush with at least two full tanks of clean water afterward. At that dose the 16.9 fl oz (500 mL) bottle gives about five complete descaling cycles.
Is Acto Anti-Calc safe to use and store at home?
The formula is designed to be safe for the seals, pipes, and heating elements of coffee machines, but it is still a cleaning product. Keep it out of reach of children, avoid contact with eyes and skin, rinse the machine thoroughly after use, and never drink the solution. Store the tightly capped bottle upright at room temperature away from heat.
What is the difference between the 500 mL and 100 mL Acto Anti-Calc bottles?
The formula is the same; only the format differs. The 100 mL bottle is a pre-measured single dose you pour in whole, convenient for occasional descaling. The 500 mL bottle holds about five doses, so you measure 100 mL each time, and it costs less per cycle for households that descale often or run more than one machine.