How to cool down after an infrared sauna — a complete step-by-step plan
How to cool down after an infrared sauna — a complete step-by-step plan
A good session deserves a good cool-down. How you cool down determines whether you sink onto the sofa relaxed, recover faster or head into your day full of energy. Three methods, each with its own purpose.
There are three ways to cool down after an infrared sauna session — and the right choice depends on your goal. Want to relax before bed? Cool down gradually. Want optimal muscle recovery after exercise? Contrast therapy with cold water. Want an energy boost? A short cold shower. In this article: the three methods explained, a complete three-phase plan, the physiology behind cooling down and common mistakes to avoid.
Do you need to cool down at all after an infrared sauna?
Yes — but the way you do it makes a big difference. After an infrared sauna session your core temperature is raised, your heart rate is above resting level and you have sweated a lot. Your body needs to be brought back into balance, otherwise you keep sweating for hours and feel uncomfortable.
The three key questions that determine how you cool down:
- When is the session? In the evening just before bed calls for a gradual cool-down. During the day or after exercise it can be more intense.
- What is your goal? Relaxation, recovery or activation — each has its own optimal cooling method.
- How do you feel? If you feel dizzy or light-headed: never go straight into cold water. Recover calmly first.
The three ways to cool down
There are three main methods to cool down after an infrared sauna session. Each serves a different purpose — choose what suits what you need at that moment.
Three cooling methods, three different goals — choose what suits your moment.
The calmest option. Stay lying down for 10-15 minutes after the session, drink water and let your body cool down naturally to room temperature. Then, if you like, a lukewarm shower (25-30°C, no colder). Ideal for evening sessions just before bed — the body stays in parasympathetic “rest and recover” mode, which benefits sleep quality.
The most powerful method for muscle recovery: warm (infrared sauna) → cold (ice bath or cold shower) → optionally warm again. The temperature switch creates a strong vasodilation-vasoconstriction cycle that greatly stimulates blood flow. Use a PolarPure ice bath (10-14°C, 2-3 minutes) or a cold shower (1-2 minutes). Read more in our article on contrast therapy.
A short, strong stimulus of 15-30 seconds of cold water (10-15°C). Too short to cool deep tissue, but long enough to activate the nervous system and release endorphins. Good after a morning session when you still need to be productive afterwards — gives a natural energy boost.
Step-by-step plan: how to cool down optimally
Whether you choose gradual cooling or contrast therapy — the three-phase structure is the same. The difference lies in what you do in phase 3.
The complete step-by-step plan: three phases after an infrared sauna session.
Phase 1: 0-10 minutes — rest and hydration
Don’t get up straight away. Stay lying calmly in or next to the sauna blanket (after switching it off), drink 250-500 ml of water and breathe calmly. Your heart rate needs to return to normal first. A thin blanket over you feels nice — the body cools down slowly by itself, and the transition becomes much more comfortable.
What not to do in this phase:
- Getting up immediately and jumping into the shower (risk of dizziness)
- Standing in a cold room
- Drinking ice-cold water (cramps and stomach upset)
Phase 2: 10-30 minutes — gradual cooling
After 10 minutes you can get up calmly. A lukewarm shower (25-30°C, no colder!) helps rinse off the sweat and activate the body. Breathing fresh air through an open window supports cooling down. Light stretching is fine, especially to loosen stiffness in the neck and shoulders. Drink another 250 ml of water — your body is asking for it.
Phase 3: 30+ minutes — optionally intense
Only in phase 3 can a more intense cold stimulus be sensible. If you go for contrast therapy: now is the time for a 2-3 minute ice bath (10-14°C) or a 1-2 minute cold shower. The body has recovered enough to handle the cold shock well. Afterwards, eat something light with protein and complex carbohydrates and replenish minerals.
The physiology — what happens in your body?
Cooling down after a sauna is not just practical — it triggers a whole cascade of physiological processes that are positive for body and mind.
What happens in your body during and after cooling down — measurable benefits for recovery and health.
The six most important effects:
- Vasoconstriction: blood vessels contract and push blood back to the organs — a training effect for your blood circulation.
- Endorphin release: the cold shock provides a natural mood boost via endorphins and noradrenaline.
- Parasympathetic activation: gradual cooling activates the “rest and recover” mode of your nervous system.
- Heat shock proteins: the temperature switch activates proteins that promote cell regeneration and tissue repair.
- Brown fat activation: cold stimuli activate brown adipose tissue — a metabolic boost.
- Anti-inflammation: cold exposure lowers inflammatory markers, which contributes to faster muscle recovery.
The five most common cooling mistakes
| Mistake | Why it’s a problem | Better |
|---|---|---|
| Cold shower straight away | Blood pressure shock, dizziness, strain on the heart | Rest for 10 min first |
| Too little water | Dehydration, headache, fatigue | 250-500 ml straight away + another 250 ml later |
| Drinking ice-cold water | Cramps, stomach upset, sudden tension | Lukewarm or room-temperature water |
| Too long in cold water | Core temperature drops too far, shivering fits | Ice bath max 3 min, shower 1-2 min |
| Exercising straight afterwards | Body is exhausted, risk of injury | Rest for at least 1 hour |
- With heart or vascular disease (consult your doctor);
- With high blood pressure;
- During pregnancy;
- With fever or acute inflammation;
- With Raynaud’s syndrome (sensitive blood vessels);
- If you feel dizzy or light-headed after the session.
The Flamengo cooling tools
For anyone who wants to build a complete recovery routine at home, Flamengo offers the tools to set up every phase of cooling down optimally.
| Tool | What it does | When to use |
|---|---|---|
| PolarPure ice bath | Stable cold (10-14°C) for contrast therapy | Phase 3, after intense exercise |
| Hot & Cold Wrap Pack | Targeted cold on specific muscles or joints | For local pain or swelling |
| Air Recovery Boots | Compression massage for the lower legs | After exercise, tired legs |
The optimal combination for anyone serious about recovery: an infrared sauna session followed by a cooling method that suits the moment, and targeted compression or cold for specific muscle groups where needed. See also our article on contrast therapy for the complete protocol explanation.
Frequently asked questions
Plan at least 10-15 minutes of rest straight after the session, followed by 15-20 minutes of gradual cooling. If you choose contrast therapy: only after at least 30 minutes an ice bath or a longer cold shower. The whole cooling process takes about 30-45 minutes.
No, not straight away. Wait at least 10 minutes — your heart rate needs to drop to a normal level first. A cold shower straight away with a high heart rate puts strain on the cardiovascular system and can cause dizziness or even fainting. Rest first, then cold if you like.
Good for most people — provided you do it correctly. Wait 30 minutes after the session, get into water of 10-14°C for 2-3 minutes, and get out if you start shivering or shaking. The vasodilation-vasoconstriction cycle is a strong recovery protocol. Avoid it with heart complaints, high blood pressure or dizziness.
Count on 500-750 ml of water in total, spread over the first hour after the session. Start with 250-500 ml straight after the sauna, drink another 250 ml after 20-30 minutes. If you sweat heavily you may need more. Optionally water with minerals or a pinch of salt for electrolytes.
Yes, provided you cool down gradually. In fact: an evening session followed by a calm cool-down can improve sleep quality — the drop in body temperature stimulates melatonin. In this case avoid contrast therapy or cold showers (these are activating).
Wait at least 30-60 minutes before a large meal. Straight after the session: water and perhaps a piece of fruit. After 30-60 minutes: a light meal with protein and complex carbohydrates — think yoghurt with granola, an omelette or a smoothie. Not too heavy, the body is still recovering.
Yes, especially contrast therapy (warm-cold-warm). The temperature switch creates strong blood flow, removes waste products faster and reduces inflammatory responses in muscle tissue. Research shows that athletes who use contrast therapy recover significantly faster than with rest alone.
The principle is the same. There is one difference: after a sauna blanket you can stay in the same room (room temperature around you), with a cabin you often have to walk outside for a moment. The latter makes cooling faster — be careful with large temperature jumps.
Conclusion
Cooling down properly after an infrared sauna session is essential — and the method determines the result. For evening sessions: calm, gradual cooling for optimal relaxation. For recovery after exercise: contrast therapy with an ice bath or cold shower, after at least 30 minutes of rest. For a morning boost: a short cold shower of 15-30 seconds. Always start with 10 minutes of rest, drink 500 ml of water and transition gradually. The Flamengo tools (sauna blanket, PolarPure ice bath, Hot & Cold wrap) are designed to optimally support every phase of your recovery routine.
Sources: PubMed — Cold water immersion and muscle recovery, CDC — Heat stress recovery guidelines. This article is for information only and does not replace medical advice. If in doubt, always consult your doctor.
