Soak agar-agar in 160 gr. cold mint infusion in a bucket with a thick bottom (for 10 minutes)
After 10 minutes, put the agar-agar on the stove and, stirring constantly, bring to a boil. Then add 400 grams of sugar and, stirring constantly, bring to a boil and cook the syrup until a thread stretches from the raised spoon (about 5-7 minutes). Set it aside, let it cool down a little.