Why the nuts you bought home are getting damp again
Nuts are rich in nutrients and have a crisp taste, making them a rare snack. But many people find that the nuts they buy home are damp, and the taste is greatly reduced. Why do nuts get damp? How should dried fruits be stored?
At present, there are mainly four kinds of nut packaging bags commonly used in the market, namely flexible packaging, vacuum packaging, vacuum packaging and paper can packaging. How should I choose?
Flexible packaging is a common form of nut packaging. Generally laminated with muti-layers, including kraft paper / Al / LDPE, OPP / VMPET / PE, etc. This material has certain barrier properties, and also has puncture resistance which can protect nuts inside the bags better. However, the storage time of nuts in this kind of flexible packaging is not very long, generally 6-8 months, but if in the summer or humid area, the storage time will be greatly shortened,so if you store the bag of nuts in summer of in humid area for too long time,it will be damp.
To solve this problem,our Beyin packing recommend to add a AL foiled layer or kraft paper layer in the middle of the packaging bags,to get better barrier performance from moisture,oxygen,and UV light.
And some brand owner choose to pour gas into the packaging bag, generally nitrogen or carbon dioxide, but more often choose nitrogen, because nitrogen is an inert gas that prevents the nuts from being oxidized. At the same time, put a desiccant wrapped in a paper bag in the bag. To absorb the moisture in the bag and prolong the storage time of the nuts
Exhaust all the air in the belt before sealing,vacuum packaging bags used in nuts will help to extend the storage time, and can retain the nutty fragrance to a certain extent. It is necessary to choose a softer vacuum material to ensure that the nuts fit as much as possible, and to ensure that the nuts is vacuum packed in a dry environment, so as to be more effective against moisture.
Paper can packaging as a new type of packaging product, paper cans can be said to be very suitable for holding nuts. Paper cans mainly use paper as the main raw material, which has good moisture-proof and waterproof characteristics. Using paper cans to store dried fruits just avoids the deterioration of dried fruits due to moisture,but the paper can cost is relative higher than other packaging.
Therefore, for nut manufacturers, it is necessary to choose four kinds of packaging according to the actual situation, and pay attention to the barrier properties of the packaging. For customers, it is recommended to choose foiled packaging bags,vacuum packaging or can packaging, which has better moisture resistance. At the same time, pay attention to the production date of the nuts and try to choose nuts with a shorter delivery time.
Post time: Mar-02-2021