If you're looking to descale your Jura coffee machine, you'll want to use descaling tablets. Descaling tablets are specifically designed to remove build-up and scale from coffee machines, and they'll do a better job than other cleaning products.
To use descaling tablets, simply follow the instructions on the package. Most descaling tablets will need to be dissolved in water before being added to the coffee machine. Once the tablet has dissolved, run the coffee machine with only water to flush out the build-up and scale.
If you have a Jura coffee machine, you can find descaling tablets at most coffee shops or online retailers.