Unverified85% confidenceDecision RuleTime unknown
速冻毛豆认准-18℃全程冷链且袋内无冰晶结块，冰晶或结块说明经历过反复解冻，口感发面、鲜甜流失
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85%
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Long-term
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Unverified冷冻毛豆选速冻（-18℃以下）且成袋无冰霜结块的，冰霜多或结成硬块说明经历过反复解冻，口感变绵、鲜味流失92% similarUnverified速冻芋圆认准-18℃全程冷链且到手无结块/无冰霜；结块或表面白霜代表化冻再冻，煮后易糊烂断裂、失去Q弹89% similarUnverified冷冻面团储存温度需≤-18℃且保持稳定，反复解冻会导致淀粉老化和析冰，表面出现干裂发白（冻伤）说明经历过温度波动，蒸后易开裂发硬，购买时检查包装内有无大量冰霜结晶86% similarUnverified选购冷冻毛豆时优选'速冻'工艺（IQF单粒速冻），袋内颗粒松散不结块说明未经反复解冻；大冰块或结成整团提示曾化冻，营养和口感下降83% similarUnverified速冻面点（包子/馒头）看是否标注'冷冻'工艺而非'速冻'，真正的-35℃以下急速冷冻能锁住冰晶细小，复热后不易发干发硬，普通冷冻则口感明显下降82% similar
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