File this under "what will they think of next?"
Researchers have developed a laser beam that can tattoo grapefruit and the new technology may soon replace the sticky ID labels that adorn the tart citrus.
The tattoos can't be washed off and allows each piece of fruit to be tracked to its source, according to an e-mail newsletter from the California Farm Bureau Federation.
Testing has shown that the tattoo does not allow pathogens to enter the fruit and researchers are testing similar tattoos on tomatoes, avocados and other citrus, the farm bureau reports.
The U.S. Food and Drug Administration has to approve the process before it can be used commercially.
No word on whether the tattoos will be heart-shaped and bear the inscription "Mom."