肉类冷库存放的标准?需要加膜或装袋吗?

2025年04月06日 00:44
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 肉类冷库存放肉制品的标准主要包含:肉的储藏类型标准和肉类冷藏库的温度贮藏要求及存放时间标准。

加膜或装袋视具体情况而定:贮藏无包装食品的冻结物冷藏间宜采用墙排管、顶排管;贮藏有包装的可采用冷风机


1.肉的储藏类型标准

肉类冷库肉的储藏可以分为冷却肉和冷冻肉两种。

(1)冷却肉标准:适用于短时刻寄存的肉品,使肉中间温度降低到0℃~1℃左右。具体需求:

肉在放入冷库前。先将库温降到零下4℃左右,肉入库后,坚持-1℃~0℃之间。

以猪肉为例:猪肉冷却时刻为24小时,可保存57天。通过冷却的肉,表面构成一层干膜,然后阻碍细菌成长,并减缓水分蒸腾,延伸保管时刻。

(2)冷冻肉标准:将肉品进行疾速、深度冷冻,使肉中大部分水冻结成冰。这种肉称为冷冻肉。

冷冻肉比冷却肉更耐储藏。肉的冷冻,通常选用-23℃以下的温度,并在-18℃左右储藏。为进步冷冻肉的质量,使其在冻结后恢康复有的味道和营养价值,当前大都冷库均选用速冻法,行将肉放入-40℃的速冻间,使肉温很快降低到-18℃以下,然后移入冷藏库。

2. 肉类冷库的温度贮藏要求及存放时间标准。

常见肉类(此处以猪肉和牛肉为例)冷藏库的温度贮藏要求及存放时间:

(1)猪肉冷库保鲜标准


新鲜猪肉储存温度:-1.5~0℃ ,相对湿度为85~90%,储存时间:7~12日;

猪肉冻库储存分四种情况:

冻猪肉冷库温度:-12℃,相对湿度为95~100%,储存时间:3~5个月;

冻猪肉冷库温度:-18℃,相对湿度为95~100%,储存时间:8~10个月;

冻猪肉冷库温度:-20℃,相对湿度为95~100%,储存时间:10~12个月;

冻猪分割肉(包装)冷库温度:-18℃,相对湿度为95~100%,储存时间:10~12个月。

(2)牛肉冷库保鲜标准


①鲜牛肉冷库存储温度:-1~0℃,相对湿度:75-80%,储存时间:3-5天。

②新鲜仔牛肉存储温度:-1~0℃,相对湿度:90%,储存时间:15-20天;

③仔牛肉冻库储存温度-1~0℃,相对湿度为90%,储存时间为15-20日;

牛肉冻库储存分三种情况:

①冻牛肉冷库温度:-12℃,相对湿度为95~100%,储存时间:6~10个月;

②冻牛肉冷库温度:-18℃,相对湿度为95~100%,储存时间:10~12个月;

③冻牛肉冷库温度:-20℃,相对湿度为95~100%,储存时间:12~14个月;

肉类冷库保鲜原理介绍

肉类冷藏库保鲜冷藏肉类的原理:低温条件下(格外零下10度左右)肉中的水分就结成冰,构成细菌不能成长发育的环境,延长肉类保鲜时间。

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