Wikipedia: Scarification (botany)

Hot water treatment is also used for removal of pathogens. Placing seeds in 90 °C for 90 seconds followed by dip in cold water for 30 seconds kills the human pathogens Escherichia coli O157:H7 and Salmonella.[3] A variety of plant pathogens are also be killed by hot water treatment.[4]


Other vegetables and herbs, such as carrot, cilantro, dill, and sorrel, are especially delicious as microgreens, but they require a week to germinate and two or more weeks to grow. Even though