No trustworthy way to know a fridge's *actual* temperature (esp. in shared flats)

Pain point

Shared/rented fridges get set wrong (8°C here), silently spoiling expensive bulk meat. Dial setpoints ≠ real temps.

Signal

Strong — ~10.3K upvotes, top comment 7.5K ("who the hell tampers with fridge temps"), plus a **direct unmet need**: *"Get an actual thermometer and validate what the actual temperature is"* — people don't know their real temp. "That's not legally a fridge."

Opportunity

~$25 BLE/WiFi fridge thermometer + app with push alerts ("above 5°C for 2h"), shareable temperature logs for housemate/landlord disputes and food-safety "is it still good?" guidance. Hardware is commodity (Govee-class); differentiation is the roommate/landlord evidence + food-spoilage logic. Moderate build; app-only version (manual logs) is quick.

Evidence

• fridge at 8°C