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保持硬币品相必须使用正确的保存方法,真空封装虽能隔离空气,但使包装材料与硬币表面紧密接触,有可能损害硬币。最简单的隔离空气的方法是将硬币浸泡在无水酒精中,这种方法保存效果较好,但不便于观赏。另外,收藏者不宜直接拿玩裸币,特别是不应触摸精制币、未流通币或高档币。硬币被手触过的地方,有可能腐蚀变黑。如确要拿放硬币,应用干净的软纸或布隔开手拿硬币的边缘。硬币一般不必清洗,特别是不能用普通橡皮或市面上出售的玻璃纤维擦
Keeping the coin phase must be done using the correct method of storage. Vacuum packaging isolates the air, but the packing material is in close contact with the surface of the coin, possibly damaging the coin. The simplest way to isolate the air is to soak the coins in absolute alcohol. This method is better for preservation but less convenient for viewing. In addition, collectors should not directly play playing the nudgets, in particular, should not touch refined coins, non-circulating currency or high-grade currency. Where the coin has been touched by hand, it may corrode and darken. If you really want to take the coin, apply a clean soft paper or cloth to take the edge of the coin. Coins generally do not have to be cleaned, in particular, can not be used with ordinary rubber or glass fiber sold on the market