Cold Plunge Protocol Timer
Most people guess a round number and bail when it hurts. Enter your water temperature to get a session length based on commonly cited cold-exposure protocols, then run an actual countdown timer for it. Nothing uploaded.
Recommended Protocol
Countdown Timer
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Learn more: Cold plunge protocols and temperature dosing
Why temperature-based protocols matter
Most people guess a session length and bail when it hurts. Published protocols like Huberman's recommend specific durations based on water temperature. A 10°C plunge calls for a different strategy than a 5°C one. Temperature directly determines how quickly cold stress accumulates, making dose (time × temperature) the real metric.
The Huberman cold exposure protocol
Andrew Huberman's frequently cited protocol recommends 11 minutes of cold exposure per week total, split across multiple sessions, at a temperature that feels uncomfortably cold. A common implementation is 3-4 sessions of 2-4 minutes each. The timer implements this as 3 cycles of 3 minutes cold with 2 minutes rest.
Safety and gradual progression
Cold water immersion carries real physiological risk, especially for people with heart conditions. Never plunge alone at very cold temperatures. Beginners should start with warmer water (10-12°C) and shorter durations (1-2 minutes), then progress gradually. Consult a doctor before starting if you have any cardiovascular condition.
Session frequency and consistency
Most evidence-based recommendations suggest 3-5 cold exposure sessions per week for measurable physiological benefits. Consistency matters more than pushing single-session duration. The timer's protocol presets ensure you're following established guidelines without guessing.
Frequently asked questions
11 minutes of cold per week total, split across multiple sessions, at uncomfortably cold but safe temperatures. The timer implements 3 cycles of 3 min cold + 2 min rest.
Depends on temperature. At 10°C (50°F), beginners start with 1-2 minutes; at 5°C (41°F), 1-3 minutes is standard. Never plunge alone at very cold temps. Consult your doctor if you have heart conditions.
Most recommendations suggest 3-5 sessions per week for measurable benefits. Consistency matters more than duration. The timer's protocol approach keeps you on track.