Wash plums gently, remove hulls with a bamboo stick, and dry well with paper towels one by one. Please make sure the plums are dried well otherwise the moisture of plums will cause growing mold in the jar.

Place the plums in a clean jar, add the salt and mix well with a sanitized spatula or your hands with gloves on to make sure that inside of the jar is kept clean. Put plastic wrap over the plums (making it stick to the surface of the plums) and put a drop lid or flat plate on the plastic wrap. Then put 4kg weight on the plate. A few days later, you will see some quantity of water may be released from the plums, then reduce the weight to 2 kg. Leave it for a week in cool, dark place.

One week later, you will see a lot of water released from the plum and find red shiso begins on the market.Remove the stems from the red shiso and wash it. Place the leaves into a bowl, add of salt and rub it with your hands and squeezing the leaves to remove any moisture. Do the same thing again with the last salt.

Please keep the liquid. we call it ume-zu(plum vinegar) and you can use it for cooking as you use vinegar for your cooking.

The dried plums should be kept in a sanitized jar with lid and will remain good for many years. Put the dried shiso leaves in a food processor and make it into coarse powder, then it'll be delicious furikake seasonings. (Furikake is toppings for rice. You can sprinkle furikake on your rice)