STEP 4/6
Boil in a pot with 200ml of water, 100ml of vinegar (or 100ml of lemon juice), 5T of sugar, 1/2T of salt. Turn it off as soon as it boils and stir it. All the sugar will melt
STEP 6/6
When it cools down, place radish and sweet vinegar water in an airtight container. You can keep it in the refrigerator and eat it 24 hours later. Boil the sweet vinegar water 3 days later, cool it down, and put it in for a month