How To Choose The Quality Mango Protection Bags?

Mango is known as the "king of tropical fruits", it has a unique flavor with high nutritional value. The fruit is rich in sugar, protein and crude fiber and other nutrients. Farmers usually use fruit growing bag to improve the quality of mangoes. But how to choose the quality mango paper bag? There are several factors to consider before you make the choice.

The shading of mango paper bags

Put a paper bag on the turned on incandescent bulb, and observe the light penetrating the paper bag. If the light penetration is poor, it means that the paper bag has good shading, otherwise, the paper bag has poor shading. The shading of the paper bag determines the speed and degree of fruit coloring after unpacking.

Waterproof of mango paper bags  

Pouring the paper bag with water. If the water rolls on the paper bag, it indicates that the paper bag has poor water absorption and good water resistance, if the water is dispersed on the paper bag, it indicates that the paper bag has strong water absorption and poor water resistance. The water-resistance of the paper bag can determine the strength of the paper bag withstand rain erosion, determine the service life of the paper bag, and also affect the infection of the fruit by saprophytes or weak parasites.

The water-resistance of paper bags is depended on the quality of the paper. There are three ways to identify paper quality.

  (1) Tear method: Tear the paper bag horizontally, you can find the paper with stubble is wood pulp paper with high strength, if the tear opening is neat and no stubble, it is straw paper or wood pulp with less composition and low strength.

  (2) Burning method: The ash of quality paper is formed and not broken, after the fire.

  (3) Hand rubbing: Soak the paper bag in water for a while, rub it with both hands after taking it out. If it is lint-free or rub-resistant, it means the paper is of good quality.

Drainage of paper bags

Generally, the paper bag has two vents at the bottom on both sides, and a slit in the middle of the bottom is good for drainage. This type of paper bag will greatly reduce black spots, fruit rust, fruit ash, and calcium deficiency than others under the premise of the same management. Besides, the fruit will have a good appearance and fast coloring.

Finally, the firmness of the iron wire and the degree of adhesion of the bonding area are also important factors that determine the quality of the paper bag.

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