How to Clean Metal Detecting Coins Safely
Checkout my cleaning intro video below.
From Fields to Display Case: Real Results
See how centuries of packed soil and crust melt away using the specialized tools in our Cleaning Bundle. By combining the Aventor formula with mechanical precision pencils, you can safely lift heavy grime without scratching the coin's delicate, historic patina. Once cleaned, a thin layer of our Preserve Bundle wax locks out moisture to protect your rare finds for generations.
Don't risk ruining your rare coins or artefacts with ordinary cleaning. Aventor Cleaning Solutions are specially formulated to safely lift away centuries of grime while preserving priceless historical details.
If you've just found a coin while metal detecting, the biggest mistake is cleaning it too aggressively. This guide shows the safest methods for modern and older coins, including when you should avoid cleaning a coin at all.
Cleaning metal detecting coins safely
Every type of coin find requires a slightly different approach. In this guide, I demonstrate how I clean milled silver coins, Roman and Georgian copper/bronze coins, medieval hammered coins, and copper coins using Aventor Solution, Aventor Preserver, cotton wool buds, and a composite pencil where needed.
Watch the demonstrations below to see the correct method for each type of coin.
What You Get:
- ✅ All Individual Items– Get just what you need below.
- ✅ The Cleaning Bundle – Strips away harsh dirt and crust without scratching.
- ✅ The Preserving Bundle – Stabilizes and protects fragile metals from decay.
- ✅ Step-by-Step Guides – Watch the exact video tutorials below to see how it's done.
- ✅ Contact Me For Support – If you have any questions drop me a line here.
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Cleaning guide
Cleaning Milled Silver coins
1. Wash the coin with distilled water, fit to coin clamp.
2. Shake the Aventor Gold and silver cleaning solution to activate its plant based formula. And cover the coin with a few droplets of the solution.
3. Using cotton wool buds, rub in the solution in a small circular manner, this will slowly lift the tarnish from the silver coin. keep doing this until you have your desired appearance. Onlu use composite pencil if absolutely required.
Click play to watch a fast-forwarded live stream demonstration showing the best way to safely clean milled silver finds.
Click play to watch a sped-up live stream demonstration on restoring thid milled silver coin.
Cleaning Roman + Georgian coins
1. Wash coins with distilled water and fit to clamp.
2. Use the white nib of the composite pencil to slowly and carefully remove the crust off the coin, do not get to close to the patina with the white nib or it will scratch the coin.
3. When close to the patina change the nib to the dark nib. Shake the Copper and bronze Aventor solution, add it sparingly to the coins surface, then use the pencil in a circular motion to slowly and carefully remove debris and corrosion from the coin. Keep repeating this process until you have the desired look. Do not go into the coins patina, if in doubt stop sooner.
4. Add the Aventor preserver of your choice for the final shine and seal.
Click play to watch a live stream demonstration showing how to safely clean crusty Roman and Georgian coins using Aventor solution.
Click play to watch a fast-forwarded time-lapse video showing the amazing, dramatic cleaning results on a crusty Georgian coin.
Cleaning Medieval Silver Hammered Coins
1. Use Aventor solution and cotton wool bud to slowly bring the coin back to life.
2. If tarnish very stuborn then the dark tip on the composite pencil can be used in small gentle circles. Ensure the pencil is not sharpened for the to avoid scratching the coin, and use it at an horizontal angle.
3. Repeat the process, and after each time wipe the fluid off with cotton woll bud until you have the desired appearance.
Click play to watch a live demonstration and explanation of how to safely clean a historic hammered silver coin.
Click play to watch a fast-forwarded time-lapse video showing the amazing cleaning results on a hammered coin using Aventor solution.
Cleaning Green Copper
Coins/ Artefacts
1. Clean with cotton wool balls & distilled water, go gentle, slowly removing the dirt.
2. Then use the preserve wax, or Aventor cream by rubbing into the coins or artefacts.
3. Rub off excess presever until you have the desired appearance.