What happened: A Wisconsin insurer alleges an Amazon Basics coffee maker's thermostat failed and started a house fire, and is suing Amazon for $301,936
Who's involved: Mutual of Wausau Insurance Corporation (insurer/plaintiff) and Amazon.com, Inc. (defendant)
What's at stake: $301,936 in subrogation damages, plus costs and interest
Why it matters: The suit treats Amazon as the manufacturer of its private-label product - a liability theory subrogation teams are watching closely
Where it stands: Complaint filed October 1, 2026; no response on record
A five-cup coffee maker sat on a kitchen counter in Denmark, Wisconsin, for just under a year before it allegedly caught fire and severely damaged the house around it.
Now the homeowners' insurer wants Amazon to pick up the $301,936 tab.
Mutual of Wausau Insurance Corporation filed suit against Amazon.com, Inc. on October 1, 2026, in the US District Court for the Eastern District of Wisconsin. The insurer had already paid out $301,936 to its policyholders under their homeowners policy, and is now exercising its right to recover that money from the party it blames for the loss - a process known in the industry as subrogation.
The complaint alleges that an Amazon Basics 5-Cup Coffee Maker with Reusable Filter - purchased directly from Amazon in October 2023 - was the origin of an October 2, 2024, fire that caused "substantial damage" to the dwelling and personal property, and forced the family to temporarily relocate.
According to the filing, the coffee maker was used in the household's kitchen "in a manner consistent with its intended and foreseeable use and Amazon's instructions." It reached the buyer "without substantial change in the condition in which it was designed, manufactured, and sold."
A post-fire laboratory examination traced the cause to the coffee maker's thermostat and thermal protectors - the internal components designed to shut down the heating element if it gets too hot. The complaint says those components failed, resulting in "a thermal runaway condition that ignited the plastic housing."
In plain terms: the safety cutoffs that were supposed to prevent overheating allegedly did not work, and the coffee maker's own casing caught fire.
Mutual of Wausau brings two counts under Wisconsin's product liability law. The first alleges a manufacturing defect - that this particular unit did not perform the way Amazon's own design intended it to. The second, filed as a backup, alleges a design defect - arguing the coffee maker's thermal-protection system lacked "adequate redundant or fail-safe overheat protection" and that better alternatives were commercially available.
The complaint is pointed about Amazon's role. It alleges Amazon "designed, specified, sourced, marketed, labeled, and/or sold" the coffee maker under its house brand, and "held itself out to consumers ... as the manufacturer" under Wisconsin law.
That framing matters. For subrogation teams chasing product liability recoveries against e-commerce platforms, the question of whether a platform that puts its own brand on a third-party-made product counts as the "manufacturer" is increasingly live. The complaint treats it as settled: Amazon branded it, Amazon sold it, Amazon is on the hook.
Mutual of Wausau is seeking the full $301,936 it paid out, plus costs and interest. It has demanded a jury trial.
As private-label e-commerce products multiply and fire-origin investigations trace failures back to house-brand appliances, this is the kind of recovery path subrogation professionals across the property market are likely to see more often.
The allegations in the complaint have not been tested, and no court has ruled on the merits.
