Why You Should Check Your Nespresso Machine's Water Levels Before Brewing - Tasting Table
Briefly

Running a brew on an empty tank can lead to overheating, internal damage, and risks like fires, especially in models that rely on pressurized brewing.
Older Nespresso models may fail to restart when they run out of water mid-cycle, causing wasted pods and inconvenience, which can justify upgrading to newer machines.
Hard water can create limescale buildup in Nespresso machines, which is why using purified water is recommended to avoid maintenance issues and prolong the life of the machine.
Common Nespresso issues like leaking are often due to a poorly connected water tank, emphasizing the importance of regular checks and proper maintenance.
Read at Tasting Table
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