From November 13 to 17, 2019, the camera crew of CCTV's "Country Chronicle" I Love Inventions column came to Guang'an and filmed the invention process of inventor Cao Junjian's invention of the quick pickled egg bucket, which lasted 5 days. It shows that after hard work and from failure to success, the inventor used ultrasonic, intelligent temperature control, and low-voltage alternating current to pickle preserved eggs, and finally invented a quick pickling method that takes 3-5 times longer than traditional pickling of preserved eggs. Egg bucket, at the same time, the inventor has improved the formula of salted preserved eggs countless times, adding raw materials such as improving nutrients, increasing freshness and flavor to the pickling ingredients, and adding ultrasonic waves, low-voltage alternating current and other methods to promote the penetration and flavor of raw materials, making salted preserved eggs It has better color, fragrance and nutrition, which not only greatly shortens the curing time, but also makes Guang'an's special salted preserved eggs taste better, achieving the characteristics of crispy egg yolk, reduced alkalinity, elastic egg white, long aftertaste, sweet and mellow flavor, and more Loved by the public, I believe that Guang'an Salted Preserved Egg will be loved by the people across the country through the innovation of inventor Cao Junjian and CCTV's reports. The program will be broadcast at a later date. The inventor, Cao Junjian, has obtained 30 national patents. In 2015, the CCTV science and education channel "I Love Inventions" reported on the egg baking machine invented by Cao Junjian with the theme of "the aroma of baked eggs." Search for baked eggs Piaoxiang or search for Cao Junjian to see the CCTV video and contact the inventor.