How to make a biscuit iron box?

Biscuit iron boxes are favored by a large number of customers due to their unique sealing properties, as well as the advantages of unchanged taste and color change,
Iron box not only provides a closed system that completely isolates environmental factors, but also provides heat. Colorless biscuit food deteriorates due to light, oxygen, and moisture, and will not fade due to aroma penetration or be contaminated by environmental odors. The stability of biscuit iron box food storage is superior to other packaging materials, with the highest preservation rate of vitamin C and protein, and the best preservation of nutrients. As the Spring Festival approaches, businesses of all sizes are nervously preparing for the New Year's goods market. Good packaging is inevitable for gift exchanges between companies and family and friends. Traditional Chinese cultural ideas represented by friendliness, festivity, and auspiciousness are reflected in exquisite packaging. Cake dry iron boxes are a good choice for gift packaging.