The coffee machine does not foam milk

One cause could be a blockage in the system, which prevents steam from entering the milk jug properly. In this case, you will need to disassemble the coffee machine and check for blockages or debris. You can also try cleaning the steam wand with a damp cloth to remove any residue.

Another possible cause could be the pressure setting of your machine. If it is set too low, the milk will not foam properly. You can adjust this setting by referring to the user manual that came with your machine.

Finally, a lack of foam can also be caused by poor quality milk. For optimal results, always use fresh, high-quality milk. If you have been using older or inferior milk, try switching to a higher quality milk and see if that helps.

These are just some of the possible reasons why your coffee machine is not producing milk foam. If none of these suggestions solves the problem, you may need to seek professional help or replace your coffee machine. In any case, always observe safety precautions when working with your coffee machine.