Tea is a kind of dry product, which is easy to absorb moisture and cause qualitative changes. It has strong absorption of moisture and peculiar smell, and the aroma is very volatile. The iron surface of the tinplate tea can is plated with a layer of tin, which can protect the tea and reduce the contact with the air.
1. The opacity of tinplate tea cans
Light can easily cause the deterioration of tea leaves and changes in food quality problems, especially green tea that is prone to deterioration when exposed to light. The opacity of the iron box makes the preservation rate of the tea higher. In addition to keeping the original flavor of the tea, even the color will not change.
2. Good sealing of tinplate tea cans
Tea leaves are most susceptible to oxidation when exposed to air, so the first key to storing tea is to seal it. The iron box has a low oxygen transmission rate and a good barrier to air, which can better protect tea leaves.
3. The reduction effect of tin in tinplate tea cans
The tin in the iron box will interact with the oxygen remaining in the container during filling. This is the reduction effect of tin. The reduction effect of tin can reduce the chance of the nutrients of tea being oxidized, and extend the shelf life of tea.
Tinplate tea cans are generally made of tinplate. The packaging material has no peculiar smell, has good moisture resistance, is extremely tight, and can reduce contact with air. The iron box has the characteristics of corrosion resistance, high strength and good ductility.Perhaps it is precisely because of these characteristics that are superior to other packaging materials that tin boxes become the primary choice for popular tea packaging.