How to remove the coding mark on eggs?

Most of the egg shells on the boxed eggs of supermarkets are marked with eye-catching red codes. Is there any way to quickly get rid of these codes on eggs?


It turned out that the eggshell is used on food grade Coding logo, is a report of qualified inspection. One egg producer in Hubei said that eggshell and egg endomembrane have stomata, red ink will penetrate into the normal, so they will be expensive to buy edible ink for coding. Imprints on cooked egg protein, mostly in the process of cooking infiltration, then raw eggs on the code can be removed if these?


Experiment one: alcohol


We dipped several swabs in a bottle of disinfectant containing 75% ethanol and wiped the eggshell code. After wiping for 5 minutes, the color of the code was weaker and the swab was slightly reddish. Continue to wipe a few minutes later, the encoding color did not continue to diminish, cotton swabs did not change color, eggs on the code can identify specific figures.


Experiment two: boiled water


Wash the eggs with boiling water, the color has not changed. Reporter with a cotton swab dipped in just boiled hot water on the egg shell code on the wipe, wipe 5 minutes, the color code is wiped away most, cotton swabs are almost dyed red. After a few minutes of wiping, the color of the code was almost erased, but it became apparent that the egg shell's crevices and small amounts of red residue in the hole left unrecognizable numbers on the egg.


Experiment three: vinegar


Cotton swab dipped in vinegar on the egg shell code on the wipe, less than 1 minute, the code will be erased by more than half. Continue to wipe 2 minutes later, the code is all wiped away, eggshell clean, can only see the residual vinegar. After rinsing the egg, there is no code mark on it.

Take a bath for eggs. Coding code all washed off at once