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<p>[QUOTE=&quot;-jeffB, post: 1988154, member: 27832&quot;]Your technique is a combination of acid cleaning and &quot;electrolytic cleaning&quot;. Electrolysis is quite effective for removing toning (tarnish) from silver.</p><p><br /></p><p>Most people recommend using baking soda (a mild base) and water instead of lemon juice (a somewhat strong acid); either one will give you the electrolytic effect (in contact with the aluminum), but the baking soda is less likely to damage the underlying surface of the coin.</p><p><br /></p><p>Depending on what your &quot;crust&quot; is made of, it&#039;s possible that the baking-soda technique might not be as effective as lemon juice. I wouldn&#039;t think of using lemon juice on modern coins, but I know the rules for ancients and dug coins are different. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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