Unverified85% confidenceDecision RuleTime unknown
厚度≥0.06mm(60微米)的密封袋可用于冷冻及反复使用；≤0.04mm的薄款仅适合短期干货收纳，冷冻易变脆开裂
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
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Unverified冷冻专用袋厚度需≥0.06mm（60微米），普通保鲜袋约0.02mm在-18℃会脆化开裂，长期冷冻应选标注'冷冻专用'且厚度≥0.06mm的PE材质94% similarUnverified冷冻专用袋厚度建议≥0.06mm（约60微米），太薄的袋在冷冻后变脆易破且防串味差；普通冷藏袋0.03-0.04mm即可94% similarUnverified冷冻用保鲜袋应选择厚度≥0.03mm（30微米）的加厚款，耐温至-40℃仍不脆裂；薄款袋子在冷冻后易破裂漏水92% similarUnverified冷冻分装选择厚度≥90微米（0.09mm）的PE材质袋，可耐-20℃低温不脆裂；普通冷藏分装60微米即可91% similarUnverified厚度看μm（微米）：冷冻用袋≥60μm可防冻脆开裂，30-40μm薄袋反复冷冻易破；抽真空专用袋多为压花网纹结构（80-100μm），普通平滑袋无法有效抽真空91% similar
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