The deep-dive reference library
Our 5 flagship pillar articles — each 2,000-3,000 words of practical, no-fluff DIY cold plunge engineering. Plus deep-dives on science, protocol, and benefits.
The Complete DIY Cold Plunge Setup Guide
The flagship reference. Parts, build steps, chiller selection, water chemistry, safety.
Open guide →Cold Plunge Temperature & Timing Protocol
°F by experience level, duration, frequency, breathwork — fully evidence-based.
Open guide →DIY Home Sauna & Contrast Therapy Setup
Infrared blankets, sauna tents, contrast cycling protocol — the full thermal stack.
Open guide →Cold Plunge Water Care & Maintenance
Ozone, chlorine, filtration, draining — keep your water fresh for months.
Open guide →Best Cold Plunge Chiller — Buyer's Guide
HP sizing, brand comparison, noise, real-world performance data.
Open guide →Cold Plunge Benefits Timeline
What to expect after 1 session, 2 weeks, 1 month, 3 months, 6 months, and beyond.
Open guide →Cold Plunge Temperature Guide
Complete temperature reference: every temperature from 60°F to 39°F explained.
Open guide →Cold Plunge Frequency Guide
The Søberg minimum, optimal weekly schedule, and signs you're plunging too often.
Open guide →Cold Exposure Science
Norepinephrine, dopamine, brown fat, vascular function — the research.
Open guide →Sauna Benefits Science
Finnish studies, cardiovascular mortality reduction, heat shock proteins.
Open guide →Contrast Therapy Protocol
Beginner, intermediate, and advanced protocols. Søberg Principle.
Open guide →