保鲜膜
产品详细介绍

PBI active tea leaves fresh-keeping bags: As the origin of tea leaves, China has a long history of tea culture. In the course of storing, tea leaves easily become deteriorated. Quality of tea leaves can be influenced by any of the factors like temperature, humidity, peculiar smell, light beam, air or microorganism. Water content is a necessary medium for the chemical reactions of various elements in tea leaves. The more water contained in tea leaves, the quicker they go bad. Not only the color becomes yellow little by little, but also the flavor and freshness is reduced.  Generally, it is deemed that a water content of 3%-5% is better. When the water content exceeded 7%, no fresh-keeping technology or packaging material can keep the tea leaves fresh. In case water content exceeded 8.8%, tea leaves may go milden. Fresh-keeping measures must be taken, such as maintaining low temperature, low humidity, avoiding light, oxygenation, and reducing water content of the tea leaves. That is to say, fresh-keeping technologies should be combined for application. Apart from maintaining the water content, flavor and tastes of tea leaves, special PBI tea leaves fresh-keeping bags can effectively keep tea leaves from becoming milden.

PBI物理活化茶叶保鲜袋:中国是茶的起源地,有着悠远的茶文化。茶在贮藏中极容易变质,温度、湿度、异味、光线、空气和微生物等都会影响茶叶的品质。水分是茶叶内各种成分发生化学反应必须的介质,随着茶叶含水率的增加,茶叶陈化劣变速度加快,色泽逐渐黄变,滋味新鲜度减弱。一般认为贮藏绿茶含水量在3%-5%为好。当茶叶含水率达7%以上时,任何保鲜技术或包装材料,都无法保持茶叶的新鲜风味。含水率超过8.8%,茶叶就可能发生霉变。 必须采取低温、低湿、避光、脱氧、茶叶低水分的保鲜措施,必须应用综合的贮藏保鲜技术。PBI的茶叶专用保鲜袋在保持茶叶本身水分、风味、口感的同时有效地防止了茶叶的霉变。

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