Unverified80% confidenceFactTime unknown
铂金硅胶模具通过弯折测试可辨真伪：反复对折折痕处不出现白色印记（发白说明填充料多、非纯铂金硅胶）
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80%
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Long-term
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Unverified食品级铂金硅胶通过拉伸测试不发白、无异味，普通硅胶折叠处会泛白，选购硅胶蒸格可通过对折检验判断材质等级87% similarUnverified食品级铂金硅胶做扭曲测试不发白、无析出物；普通硅胶弯折处会泛白，出现白痕说明含填料，长期接触食材不安全86% similarUnverified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% 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83% similar
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