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<p>[QUOTE="Sallent, post: 3096226, member: 76194"]I don't know how he bakes them, but water boils at 212F, which is 100C for those in the civilized world. My guess is he probably puts them in an oven at around 235F (112C) to 250F(121C). </p><p><br /></p><p>I have no doubt that heat will soften the coin metal somewhat, and cause expansion inside a coin that may already be weakened by crystalization or other environmental damage from burrial, but whether the additional internal damage (which is probably slight) bothers you or not, thats up to you. My guess is a few heating sessions may not cause noticeable damage, but I get the feeling that enough of them over successive owners will probably start to see some of them turn to dust or several pieces.[/QUOTE]</p><p><br /></p>
[QUOTE="Sallent, post: 3096226, member: 76194"]I don't know how he bakes them, but water boils at 212F, which is 100C for those in the civilized world. My guess is he probably puts them in an oven at around 235F (112C) to 250F(121C). I have no doubt that heat will soften the coin metal somewhat, and cause expansion inside a coin that may already be weakened by crystalization or other environmental damage from burrial, but whether the additional internal damage (which is probably slight) bothers you or not, thats up to you. My guess is a few heating sessions may not cause noticeable damage, but I get the feeling that enough of them over successive owners will probably start to see some of them turn to dust or several pieces.[/QUOTE]
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