Making method of lead-free Yunnan Pu'er tea preserved eggs

Abstract

The invention adopts eggs as the pickling material, and adopts edible caustic soda, Pu'er tea and salt as the curing accessories for processing preserved eggs. The complete processing process consists of 7 steps of: material decocting, fresh egg selection and grading, potting, soup filling, pickling, output from a pot, and storing. In order to ensure product quality, proper feed liquid temperature, pickling chamber temperature and storing environment temperature must be controlled. With simple operations, the method of the invention can produce pickled preserved eggs with heavy tea aroma, light alkaline flavour, moderate saline taste, low lead content (about 0.2mg / kg), low copper content (1.00mg / kg, with the standard requirement of less than 10mg / kg), no wrapped mud, cleanliness and hygiene, and the produced preserved eggs can meet the national standard requirements for pollution-free preserved eggs and lead-free preserved eggs.

Description

technical field [0001] The invention relates to a technology for processing preserved eggs of poultry and egg food, in particular to the processing of lead-free preserved eggs with eggs as raw materials and Pu'er tea leaves as main ingredients. Background technique [0002] Preserved eggs, also known as preserved eggs, are one of the traditional Chinese foods. With the progress of society and the change of consumption concept, when consumers choose preserved eggs, they prefer lead-free and distinctive preserved eggs. [0003] At present, the high lead content in preserved eggs is a serious problem. Preserved eggs produced by traditional techniques, because a certain amount of yellow dan powder (lead oxide) was added, the lead content exceeded the standard and endangered human health. Although the current NY 5143-2002 and GB 2749-2003, as well as the State Bureau of Technical Supervision in May 2010 combined the original GB 2749-2756-81 and GB 5128-85 to revise the national...

AI Technical Summary

Problems solved by technology

In order to solve the problem of high lead content, relevant researchers studied the substitutes of Huang Dan powder and found that EDTA (ethylenediaminetetraacetic acid) and FWD (a substance synthesized from magnesium and manganese) are more effective substitutes, but their effects Not as good as yellow dan powder because the alternatives form smaller particles

Many people have been exploring the processing method of lead-free preserved eggs, but failed