Cleaning sauna benches

Cleaning sauna benches covers the routine and periodic washing of the bench platforms, backrests, foot benches and headrest areas — the surfaces with the most skin contact in the sauna. Benches soil faster than walls or ceilings and need their own rhythm within whole-room cleaning: a seconds-long wipe after every session, a proper wash a few times a year, and an annual check of fastenings and finish. Stain treatment is detailed in Removing sweat stains; abrasive restoration in Sanding sauna benches; re-protection in Oiling sauna benches.

After every session

Benches should never be left wet and dirty between sessions. The routine takes under a minute: wipe the occupied boards with a soft brush dipped in plain water or a damp cloth, remove seat towels and covers, and leave the room to dry with heat and ventilation. Trade guidance echoes the point: benches wiped with a towel after use and a door left open for 30 minutes prevent the great majority of deep-cleaning needs. Always sit on a clean towel during the session itself — prevention, covered in Sauna hygiene, matters more than any wash afterwards.

Periodic washing

A family sauna's benches need a thorough wash roughly one to three times a year as part of basic cleaning, using a moderate amount of water and a slightly alkaline (pH 8–10) sauna-suitable detergent; heavily used benches need it more often. A proven method, combining manufacturer guides:

1. Mix the cleaner as directed — for example about 30 ml of concentrate to 5 litres of warm water — wearing gloves.
2. Wash with a sponge or soft brush, always brushing along the grain of the wood, and rinse the boards several times to remove detergent. A final rinse with cold water helps close the grain so it repels dirt.
3. Clean both accessible sides of removable bench sections and duckboards, since soil and moisture collect underneath as well as on top.
4. Rinse away residue without flooding the room, then dry with the heater on for at least 30 minutes with ventilation open.

For light intermediate cleans between washes, warm water with a soft brush and a little mild or sauna-specific cleaner suffices; one retail guide cites a capful of mild dish soap per gallon of water as a household example for sweat marks. Avoid bleach, ammonia, solvents and abrasive metal tools on all bench wood, and never use running water or a pressure washer on the boards.

Bench-specific checks

Each wash is also an inspection:

• Structure and fastenings — check that boards, supports and backrest battens are sound, and tighten screws that have loosened as heat and humidity swelled and shrank the wood.
• Stains — treat stubborn dark marks while dry by light sanding, then re-treat the sanded area (see Sanding and stain removal).
• Finish — once clean and fully dry, renew paraffin-oil protection as directed, testing first on an inconspicuous spot (see Oiling).
• Ergonomics and wear — note splinters, sharp edges, cracked boards or wobbling sections for repair; background on dimensions and layout is in bench height, foot benches, backrests and headrests.
• Hygiene textiles — launder seat towels hot; worn bench covers that shed fibres or hold odour should be replaced rather than washed harder.

Persistent odour, mould or rapid re-soiling of clean benches usually indicates failed drying or ventilation rather than a need for stronger chemicals. Note such findings in the maintenance schedule; commercial rooms follow commercial frequencies and use a dedicated cleaning brush kept for the sauna alone. Glass beside the benches is covered in glass cleaning, and water quality affects how fast mineral films build up on nearby surfaces.

See also

• Cleaning a sauna
• Sanding sauna benches
• Oiling sauna benches
• Removing sweat stains
• Sauna hygiene
• Drying a sauna