推荐回答（5个）
水果的话应该没有可以永久保存的，但是如果是坚果就相当有可能永久保存了！
专家发掘的古墓遗址中，有千年前的莲子，竟然放入水中培养还发芽了！
所以坚果类的真的可以尝试存放很久，只要不进水，完全有可能存放很久的时间！几千年后拿出来，说不定还真能发芽呢！自然界的生物这时候看相当神奇！
但是水果迄今为止没有发现任何一种存放时间极长的存在！因为水果中富含水，容易腐烂变质。但是如果在绝对零度的环境温度下，什么都可以永久保存不会坏，因为绝对零度可以冷冻原子！
所以在自然条件下没有水果可以永久保存，绝对零度下，任何东西都可以永久保存，更不用说水果了！
没有永久不坏的方法 只有能使水果保鲜期延长几个月的方法 应选择无变质腐烂、无破损、刚采摘的新鲜水果。水果采摘后用清水洗净表皮上的污垢及残留药物。 杀菌处理 目前，市场上销售的杀菌剂大部分都具有毒性，残留物对人体有害。本技术选用的是无毒、安全、高效杀菌剂——过氧酸。
操作使用方法是：将洗净的水果置于含过氧酸为0。2%～0。3%的杀菌水溶液中浸泡1分钟左右，取出后用干净的自来水清洗掉水果外表的杀菌液，然后将水果放置在阴凉通风处去掉表面水分。 保鲜剂的选择 水果在贮藏过程中，本身会放出乙烯或碳酸气体，这些气体是引起水果发生生理变化，致使水果提早老化以至于腐烂变质的根本原因。
为消除水果放出的乙烯或碳酸气体的影响，目前使用的保鲜剂虽有多种，但大部分都选用以活性炭为代表的吸附型和高锰酸钾为代表的氧化分解型两大类。前者虽然去除率高，但吸附饱和后即失效，甚至还有脱附的危险；后者存在去除速度慢、保鲜效果不明显的缺点。该技术选用具有吸附、氧化、耐水等全功能效果的“ⅡY－1”型水果保鲜剂，可完全克服上述缺点，保鲜效果好、周期长，广泛适用于各种水果的保鲜贮藏。
保鲜剂的使用方法 将粉状保鲜剂装入透气好的布袋中，每袋装入量为10克，封口备用。取杀菌处理后的水果3公斤与一袋保鲜剂共同装入塑料包装袋中，扎实密封，放入阴凉房屋或地窖中即可保鲜贮藏，保鲜期可达3～6个月。
永久保存的水果没有，除非水果干之类的时间可以放长点但不排除有防腐剂尽量吃新鲜的水果望采纳
好象还没听过哪种水果不会坏，除非是画在画里的水果。
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