Unverified80% confidenceDecision RuleTime unknown
鉴别真硅胶：用力扭曲拉伸模具边缘，纯硅胶不会泛白，掺入填料的劣质品扭曲处会出现白色痕迹
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Unverified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89% 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89% similarUnverified硅胶折叠杯用手撕拉杯壁若出现白色痕迹（返白现象），说明填充了碳酸钙等劣质填料，纯硅胶撕拉不返白84% similarUnverified认准食品级铂金硅胶（Platinum Silicone），做法：拉扯袋体边角若出现白色则为填充料过多的普通硅胶，铂金硅胶拉伸后不变白且回弹快84% 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83% similar
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