Unverified85% confidenceDecision RuleTime unknown
判断硅胶是否含填充料：将配件反复弯折，若折痕处出现白色/发白则含较多工业填充料，纯硅胶弯折不变色，纯硅胶更耐用且无有害物迁移风险
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Unverified判断硅胶纯度可用'白痕测试'：用力拉扯或扭折模具，出现白色折痕说明填充了碳酸钙等杂质，纯硅胶扭折后不变色86% similarUnverified硅胶圈虽提升密封，但属易损件且易霉变发黄，选购时应确认硅胶圈可拆卸清洗、有单独配件出售，否则圈坏即整罐报废85% similarUnverified鉴别真食品级硅胶：用力扭折表面不出现白色痕迹（无白化），说明纯度高；出现白痕则掺有填充料，耐用性和安全性较差84% similarUnverified带硅胶密封圈或包胶手柄的套装，硅胶部件应可拆卸清洗，不可拆的凹槽处长期使用会发霉发黑，购买时确认硅胶为食品级且可分离84% similarUnverified不建议购买价格极低的无认证硅胶盖，劣质硅胶常掺入工业硅胶或填充剂，鉴别方法：白色扭曲测试（拉伸后出现白痕）说明填充物多，纯硅胶扭曲不变色84% similar
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