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Homemade mouthwash can be prepared in just a few minutes using ingredients from your pantry: half a teaspoon of salt or baking soda in a glass of lukewarm water is enough to create a soothing solution for infections or sensitive gums. When prepared correctly, it complements brushing, helps limit bacteria, and calms temporary irritation. This guide provides precise recipes, safe dosages, essential precautions for using essential oils, and warning signs that should prompt you to see a dentist.
Key points to remember
- The simplest and safest recipe remains salt water: half a teaspoon of salt in 200 to 250 ml of lukewarm water.
- Baking soda neutralizes acidity and freshens breath; salt soothes the gums after dental treatment.
- Essential oils (tea tree, peppermint, clove) are effective but require strict dilution: never more than 1 to 2 drops, and never swallow them.
- Homemade mouthwash does not keep: prepare it immediately before use, or store it for a maximum of 48 hours in the refrigerator in a clean bottle.
- Use it as a short course (a few days), not continuously, and never as a replacement for brushing.
- Persistent pain, swelling, or fever requires a dental consultation: mouthwash provides relief but does not treat an established infection.
Brushing your teeth alone does not guarantee good oral hygiene. It benefits from being supplemented with mouthwash to help limit infections. This type of product can be purchased at a pharmacy or made at home using natural ingredients that can reduce the bacteria present in the oral cavity.
Which natural product can you use to make homemade mouthwash?
Several everyday ingredients can be as effective as a pharmacy-bought solution, provided the correct amounts are used. Here are the most reliable options, from the gentlest to the most delicate to handle.
Salt
Salt is the most recommended natural anti-inflammatory, particularly after a visit to the dentist, as it reduces inflammation without notable side effects. Add half a teaspoon of salt to a glass of warm water (200 to 250 ml), stir until dissolved, then circulate the solution around your mouth for thirty seconds to one minute before spitting it out. Repeat two to three times a day, preferably after brushing.
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Baking soda
Baking soda is not just for cooking: it helps keep teeth healthy by neutralizing acidity in the mouth. Dilute one teaspoon of baking soda in a glass of water, mix, gargle for one to two minutes, then spit it out and rinse with warm water. Baking soda helps fight bad breath and slows tartar formation.
Cloves
Cloves have antiseptic and antibacterial properties. Steep three or four cloves in warm water for a few minutes, let cool, strain, then use the liquid as a rinse. You can use it after meals. Its action helps protect the gums, but the infusion should remain mild and must never be swallowed in large quantities.
Apple cider vinegar
Apple cider vinegar helps limit acids deposited by food. It must be diluted: one teaspoon in a large glass of water, no more. Use it as a rinse after brushing, without overdoing it. If too concentrated or used too frequently, its acidity weakens tooth enamel, so it is best reserved for occasional use.
Essential oils: effective but must be handled with caution
Tea tree and peppermint essential oils are known for their antibacterial properties. Never pour them pure into your mouth. Add a maximum of 1 to 2 drops diluted in a glass of water, ideally combined with a pinch of baking soda to help disperse them. Spit out the solution completely and never swallow it.
Essential oil precautions: not recommended for pregnant or breastfeeding women, young children, or people with epilepsy or allergies. If in doubt, ask a pharmacist for advice before use. Never exceed the stated dose: more is not better.
Soothing herbs: sage and chamomile
For irritated gums, a cooled infusion of sage or chamomile makes a gentle mouthwash. Steep one teaspoon of dried herb in 250 ml of hot water, let it cool until lukewarm, strain, then use it as a rinse. These infusions are well suited to sensitive mouths that do not tolerate salt or baking soda well.
Quick recipe: salt-water mouthwash, step by step
This is the safest preparation, and it can be used every day for sore gums or after an extraction when recommended by the dentist.
- Warm 200 to 250 ml of water until lukewarm (not hot or ice-cold).
- Add half a teaspoon of fine salt and stir until completely dissolved.
- Take a sip and gently move the solution around your mouth for thirty seconds to one minute, focusing on the sensitive area.
- Spit it out without swallowing, then repeat with the rest of the glass.
- Repeat two to three times a day, preferably after brushing. Do not rinse immediately with clean water, so the solution can take effect.
Freshness tip: after a tooth extraction, wait at least 24 hours before rinsing vigorously, then use very gentle movements to avoid dislodging the protective blood clot.
When and how often should you use homemade mouthwash?
Homemade mouthwash helps prevent certain oral discomforts and support gum healing: early-stage cavities, gingivitis, and sensitivity after treatment. It can also be useful after minor oral surgery to limit the proliferation of microbes around the treated area.
Its use should remain limited. Use it as a short course for a few days, then take a break before repeating if necessary. Continuous use of mouthwash, even a natural one, can disrupt the oral flora.
Key takeaway: mouthwash complements brushing; it does not replace it. Combining thorough brushing with an appropriate rinse is what maintains good oral hygiene.
Homemade mouthwash or a pharmacy solution: which one should you choose?
Chlorhexidine-based commercial mouthwashes are highly effective against infections in the short term, but they are reserved for occasional prescribed courses because they can stain the teeth and affect taste. Homemade recipes are gentler, more affordable, and kinder to the oral flora, but their effects are more moderate. For a genuine, confirmed infection, the prescribed pharmacy product remains the reference treatment; for daily maintenance and soothing, the homemade version is often sufficient.
The most important step: truly effective brushing
No rinse can make up for inadequate brushing. Before using any mouthwash, you need to remove as much plaque as possible from all the teeth. A brush that cleans all surfaces at once makes this part of your daily routine easier, and a water flosser like the Hydro One completes cleaning between the teeth, where the bacteria responsible for gingivitis accumulate. Mouthwash only comes afterward, as the finishing touch.
Frequently asked questions about homemade mouthwash
What is the best homemade mouthwash for an infection?
For an infected or irritated gum, salt-water mouthwash is the safest and best-tolerated option: half a teaspoon of salt in 200 to 250 ml of lukewarm water, two to three times a day. It soothes inflammation without irritating the tissues. It provides relief, but if the infection persists for more than two to three days, a dental consultation is essential.
Can you use baking soda mouthwash every day?
Baking soda can be used daily for a short course, but not indefinitely. Its mild abrasive action and ability to alter the mouth's pH call for moderation: use it for a few consecutive days, then take a break. For gentler regular use, salt water or chamomile tea is more suitable.
Does homemade mouthwash replace brushing?
No. Mouthwash is a supplement, never a substitute for brushing. Brushing is what mechanically removes dental plaque; rinsing only reaches hard-to-access areas and soothes them. To do it properly, brush thoroughly first, as explained in our guide on how long to brush your teeth, then finish with mouthwash.
How long should you keep homemade mouthwash in your mouth?
Thirty seconds to one minute is enough for the solution to circulate and reach all areas. There is no need to continue longer: beyond that, effectiveness does not increase, but discomfort does. Spit it out without swallowing, then avoid rinsing immediately with clear water so the ingredients can continue to work.
Are essential oils safe in mouthwash?
Essential oils are safe only when highly diluted and never swallowed. Limit use to 1 to 2 drops in a glass of water, combined with a pinch of baking soda to disperse them. They are not recommended for pregnant women, young children, or people with allergies or epilepsy. If in doubt, a pharmacist can advise you.
How should homemade mouthwash be stored?
Ideally, prepare it just before use and use it immediately. If you prepare it in advance, store it in the refrigerator in a clean glass bottle and discard it after 48 hours. Without preservatives, a natural preparation deteriorates quickly and can become a breeding ground for bacteria.
Does apple cider vinegar damage teeth?
Undiluted or used too frequently, apple cider vinegar can erode enamel because of its acidity. When diluted (one teaspoon in a large glass of water) and used occasionally, it remains acceptable. Always rinse with clear water afterward and avoid brushing your teeth for half an hour after an acidic rinse.
Is homemade mouthwash enough to treat gingivitis?
Homemade mouthwash can soothe early gingivitis, but it cannot treat it on its own. Gingivitis is primarily treated by removing plaque and tartar: thorough brushing, cleaning between the teeth, and, if necessary, professional scaling at the dentist. Natural rinsing supports this work without replacing it.
When should you see a dentist rather than continue rinsing?
Pain lasting more than two to three days, swelling, an abscess, fever, or a persistent bad taste are warning signs. Homemade mouthwash can relieve mild discomfort, but an established infection requires a diagnosis and sometimes treatment. When in doubt, make an appointment: it is better to seek advice early than to wait for a complication.
