Ultrasonic cleaner — a tool for micro-crevices

Traditional cleaning methods (sponge, brush, soaking) do not reach micro-crevices <1 mm in jewelry (e.g., between the stones of a ring), glasses (between the frame and the lens), watches (between the links of a bracelet), or technical equipment (carburetors with 0.3-0.5 mm nozzles).

An ultrasonic cleaner generates 35-45 kHz ultrasonic waves in a liquid. The waves create cavitation microbubbles 1-100 μm in diameter that implode on the surface of an object with energy on the order of 10⁴-10⁶ Pa locally. This microscopic "explosion" breaks down dried-on dirt without mechanical contact — clean from every crevice.

Vitaclean ultrasonic cleaner concentrate (1 L = 67 cycles) is a dedicated concentrate for this mechanism — alcohol-free (does not ignite in a hot bath), pH 10.0 (alkaline) — gentle on most materials, biodegradable.

Vitaclean ultrasonic cleaner concentrate — specifications and why it works

Composition and properties

Vitaclean ultrasonic cleaner concentrate is a concentrate designed specifically for ultrasonic cleaners:

• Plant-based surfactants dissolve fats, oils, and greases
• pH 10.0 (neutral) — safe for precious metals, glass, plastic, rubber
• Alcohol-free — non-flammable, can be used in a heated cleaner (up to 60°C)
• Microplastic-free — 100% biodegradable
• Chlorine and phosphate-free — safe for jewelry and the environment

Efficiency

• 1 L bottle = 67 cycles (at a 1:40 ratio)
• Cost per cycle: less than 0.60 PLN (1 bottle of Vitaclean ultrasonic cleaner concentrate lasts for 67 cycles)
• Cycle time: 5-10 minutes

What distinguishes Vitaclean ultrasonic cleaner concentrate from the competition

Vitaclean ultrasonic cleaner concentrate wins: price + versatility + safety.

Dosage and procedure

Standard: 1:40

• 15 ml Vitaclean ultrasonic cleaner concentrate (1 tablespoon)
• 600 ml water (lukewarm, 25-40°C; hot in a heated cleaner up to 60°C)
• Capacity of a typical home cleaner: 600-800 ml

Larger cleaners

6 L (professional) 150 ml 6 L

Step-by-step procedure

1. Pour water into the cleaner (up to the max mark)
2. Add Vitaclean ultrasonic cleaner concentrate in the appropriate dosage (1:40)
3. Place items in the metal basket (NOT on the bottom of the cleaner — items on the bottom will be damaged by vibrations)
4. Select a cycle (5-10 min standard)
5. Turn on the cleaner — you will hear a faint ultrasonic hum
6. After the cycle, remove the basket and rinse items under running water
7. Dry with a soft microfiber cloth (NOT a paper towel — it may cause scratches)
8. If dirt remains: run a second cycle in a fresh solution (Vitaclean ultrasonic cleaner concentrate is spent after one cycle)

What to clean — whitelist

✅ Jewelry

• Gold (8K, 9K, 14K, 18K, 22K, 24K) — all carats
• 925 Sterling Silver — check for tarnishing (patina forms, which can only be partially removed)
• Platinum — very safe, hard
• Palladium, ruthenium — safe
• Stainless steel (e.g., Casio watches, modern jewelry) — safe
• Titanium — safe

✅ Gemstones (Mohs hardness 7+)

• Diamond (10) — hardest, totally safe
• Corundum: sapphire (9), ruby (9)
• Topaz (8)
• Aquamarine, beryl (7.5-8)
• Garnet, amethyst, citrine (7)

✅ Eyeglasses

• Metal frames (Ray-Ban Aviator, titanium) — safe
• Plastic frames (Ray-Ban Wayfarer, acetate) — safe, shorter cycle of 3-5 min
• Glass or plastic lenses with anti-reflective coating — safe, Vitaclean ultrasonic cleaner concentrate does not damage coatings
• Polarized sunglasses — safe (the coating is beneath the lens, cavitation will not affect it)

✅ Watches (WATERPROOF ONLY)

• Check IP rating: minimum IP67 or 5 ATM (50 m water resistance)
• Diver watches (Seiko, Citizen, Casio Pro Trek) — safe
• Smartwatches (Apple Watch, Garmin) — check the manual
• ❌ Mechanical Swiss watches are often not airtight — DO NOT use ultrasound

✅ Numismatics (moderately)

• Modern coins (up to 100 years old) — safe, 5-10 min
• Old coins (>100 years old) — CONSULT a conservator ONLY — aggressive cleaning reduces collector value
• Gold coins (Krugerrand, Eagle) — safe

✅ Small technical parts

• Carburetors (motorcycles, RC models) — 20-30 min cycle
• Screws, nuts — 5-10 min
• Precision tools (watchmaker, modeling)
• Coffee machine filters (also check cleaning the milk system with Vitaclean milk system cleaner)

✅ Prosthetics and dental appliances

• Dentures (acrylic, partial) — 5-10 min, daily is OK
• Hearing aids (check if the manufacturer allows it, some do)
• Orthodontic aligners (Invisalign, retainers)

What NOT to clean — blacklist

❌ Natural pearls — pearl layer is porous, cavitation destroys it permanently ❌ Cultured pearls — same ❌ Opal — porous, absorbs water → cracks after drying ❌ Malachite, turquoise, lapis lazuli — porous, fragile ❌ Amber — soft (Mohs 2-2.5), ultrasound damages it ❌ Glued jewelry (stones glued instead of set) — glue dissolves, stones fall out ❌ Non-waterproof watches (mechanical, antiques) — water gets into the mechanism ❌ Wooden frames (e.g., some fashion glasses) — wood absorbs water and cracks ❌ Leather (watch straps, cases) — absorbs water, deforms ❌ Paper, photographs — dissolves ❌ Museum antiques — always consult a conservator ❌ Smartphones, electronics (even if waterproof, cavitation can damage internal components)

Rule: when in doubt — TEST on a less valuable part (e.g., the least visible side of the jewelry). 5 minutes, check for damage.

Home plan — what to buy

Minimum set (under 250 PLN)

• Ultrasonic cleaner 600 ml, 40 kHz — Hozly or Vevor (~150 PLN)
• Vitaclean ultrasonic cleaner concentrate 1 L
• Microfiber for drying — 10-20 PLN

Annual operation: 1 bottle of Vitaclean ultrasonic cleaner concentrate (lasts for 67 cycles, for a home with 1 cycle/week). The investment pays for itself after 3-4 visits to a jeweler (100-200 PLN each).

Professional set (under 650 PLN)

• 2 L cleaner with heating (Vevor Pro, Crenex) — ~400 PLN
• Vitaclean ultrasonic cleaner concentrate 1 L
• 2 baskets of different sizes — 50 PLN
• Microfiber set — 30 PLN

For a home with larger jewelry, hobbyists (numismatics, modeling), workshops.

What to choose

First time: minimum set, check if you use it regularly. After 6 months, you'll know if an upgrade to a 2 L model with heating is worth it.

Cleaning frequency

Most common mistakes

Full strength Vitaclean ultrasonic cleaner concentrate — it is a 1:40 concentrate, do not use undiluted. It will damage the delicate coatings of some lenses.

Plastic basket — cavitation destroys it. Only use a metal basket (stainless steel).

Items on the bottom of the cleaner — vibrations damage both the items and the walls of the cleaner. Always use a basket.

Non-waterproof watch in the cleaner — water gets into the mechanism, repairs cost 200-500 PLN at a watchmaker. Check IP rating.

Skipping the test — first time on precious jewelry without testing = risk. Test on a less visible part.

Reuse of the same solution — Vitaclean ultrasonic cleaner concentrate is spent after one cycle. Each new set of items = new solution.

No drying after the cycle — water remains in microscopic gaps, spots form after drying (especially with hard water). Microfiber + compressed air/blown air (e.g., keyboard blower).

Safety

• ✅ Vitaclean ultrasonic cleaner concentrate is skin-safe at a 1:40 concentration — minimal allergy risk
• ⚠ Do not put your hands in the cleaner while it is running — ultrasound can irritate the skin with prolonged contact
• ⚠ Ventilation — although Vitaclean ultrasonic cleaner concentrate is alcohol-free, it is recommended to keep a window open for 30+ minutes of operation
• ✅ Pet-safe once dry (vegan, biodegradable, microplastic-free)
• ⚠ Keep away from children — an ultrasonic cleaner is not a toy

Related articles

• Cleaning jewelry in an ultrasonic cleaner
• Cleaning glasses with ultrasound
• Watches in an ultrasonic cleaner
• Cleaning coins and numismatics
• E-cigarettes and small items
• Carburetors, screws, technical parts
• Professional applications

Related articles from other clusters

• How to clean a frother nozzle in an ultrasonic cleaner — coffee machine nozzles

Related products

• Vitaclean ultrasonic cleaner concentrate — 1L — 67 cycles, alcohol-free, biodegradable

Sources

• Vitaclean ultrasonic cleaner concentrate SDS (PDF)
• Ultrasonic cleaner manufacturers (Hozly, Vevor, Crenex, Branson) — user manuals

Frequently Asked Questions

What is an ultrasonic cleaner and how does it work? +

An ultrasonic cleaner is a device that generates ultrasonic waves (35-45 kHz) in water mixed with a cleaning concentrate. The waves create cavitation microbubbles that implode on the item's surface, mechanically breaking down dried dirt from microscopic crevices (0.1-0.5 mm) where brushes or sponges cannot reach. Ideal for jewelry, glasses, watches, coins, and small technical parts.

How do I dose Vitaclean ultrasonic cleaner concentrate? +

Standard: 15 ml of Vitaclean concentrate + 600 ml of water = 1:40 ratio. A tablespoon of Vitaclean concentrate is sufficient for most home cleaners (600-800 ml capacity). For larger cleaners (1-2 L): adjust proportionally (25 ml + 1 L of water, 50 ml + 2 L). DO NOT use undiluted — Vitaclean is a concentrate and in full concentration, it may damage some delicate coatings.

What can I clean in an ultrasonic cleaner? +

✅ Safe: jewelry (gold, silver, platinum, stainless steel), glasses (metal and plastic frames), WATERPROOF watches (check IP rating), coins and numismatics, e-cigarettes (pods, drip tips), small technical parts (carburetors, screws, tools), dentures, hearing aids. ❌ NOT: natural pearls, untreated stones (opal, malachite, turquoise), glued jewelry, non-waterproof watches, wooden frames, paper.

Will an ultrasonic cleaner damage jewelry? +

Hard jewelry (gold, silver, platinum, steel) — it will NOT damage. Delicate stones can be damaged: natural pearls (nacre layer cracks), opal (porous, absorbs water), malachite/turquoise (porous). Gemstones like diamonds, sapphires, rubies, emeralds — safe (Mohs hardness 7+). Rule: if the jewelry has glue (stones glued instead of set) — DO NOT use ultrasound.

How long is an ultrasonic cleaner cycle? +

Typically 5-10 minutes for the vast majority of items. Most home cleaners have predefined cycles: 3, 5, 10, 20 minutes. 5 min: light jewelry, fresh glasses, coins. 10 min: dried dirt, jewelry worn daily, watches. 20 min: technical (carburetors, grease), very dirty coins. After the cycle, rinse under running water and dry with a soft cloth.

Does an ultrasonic cleaner dissolve rust? +

Partially. Surface rust (on tools, coins) will be dissolved by Vitaclean concentrate + ultrasound in 10-15 minutes. Deeply corroded items require specialized rust removers + longer cycles (30-60 min) or mechanical removal. Numismatics with old coins (>50 years) sometimes require a professional conservator — aggressive cleaning reduces collector value.

Which ultrasonic cleaner should I buy? +

Home use (jewelry, glasses): 600-800 ml capacity, 35-42 kHz, ~150-300 PLN (Hozly, Vevor, Crenex). Mid-tier (watches, tools): 1-2 L, 40 kHz with timer, ~300-500 PLN. Premium (carburetors, professional): 2-6 L, 40+ kHz with heating, 500-1500 PLN. IMPORTANT: buy one with a metal basket (not plastic — cavitation damages it) and a timer. Vitaclean concentrate is compatible with all popular models.