We test the $5,000 gear so you don't waste your money.
Independent, instrument-logged reviews of cold plunges and saunas. No marketing fluff. No free products. Just the data and our honest call.
The human behind the data.
Caleb Voss
Former NCAA swimmer (Oregon State '11). 14 years in athletic recovery research. Built his first cold plunge in his Portland garage in 2018. His methodology is simple: if he wouldn't spend his own money on it, he won't tell you to spend yours.
The protocol: 30 days minimum.
We don't do unboxing videos. Every product gets a minimum 30-day live-in test. We log thermal decay with calibrated probes, measure real kilowatt-hour draw, and stress-test seams and seals until something fails. If it breaks, we tell you why.
Our Full Testing Methodology →Thermal Precision
Calibrated K-type probes, 60-second logging.
Energy Audit
Real kWh draw across 30 days, every season.
Build Integrity
Seam, seal, and material stress testing.
Sanitation Check
Ozone/UV efficacy, filter drift over time.
Deep dives. No spam.
One email each Sunday with new lab results, price-drop alerts, and the one piece of gear we'd actually buy this week.