Nomad decided to check his parents' home network activity after noticing unusual behavior and found that their smart coffee machine had transmitted an extraordinary volume of data. Specifically, the device had broadcast approximately 1 terabyte of information within just a 10‑day period, a quantity far exceeding what would be reasonably expected from such an appliance.

The image shows a coffee machine similar to the one that transmitted 1TB of data, overwhelming the home network as described in the article.
Although the majority of that traffic never left the confines of the local home network and remained internal rather than being sent over the wider internet, the sheer volume was still large enough to completely saturate the household's wireless access point. Nomad described the effect using the technical term that it 'did saturate my AP, that sucked,' and in simpler terms noted that the coffee maker was generating so much traffic that it overwhelmed part of their home Wi‑Fi setup.
Drawing on more than ten years of experience working in information technology, Nomad characterized this network saturation behavior as likely being caused by a bug in the specific coffee machine unit. He explained that, after considering digging deeper to determine exactly what the machine was doing, he ultimately concluded that it was not worth keeping the device connected because of its demonstrated capability to malfunction in ways that cause significant network disruption.
Nomad shared his findings on the social media platform X, attaching a screenshot that showed the traffic spike, and noted that while he helps his parents manage their internet setup remotely, he does not police what they buy. After weighing the situation, he decided to purchase a new coffee maker for his parents, viewing this as a more practical and dependable long‑term solution than continuing to troubleshoot or use the faulty equipment that had caused the network saturation incident.