First, the whole multivitamin candy must be crushed. I crush them first, then I cut everything nice and small with a large knife.
Then you have to fill the crushed candy into the grain bottle - but first pour off some grain so that none of the alcohol runs out when filling the candy. Otherwise the candy will not fit in completely.
Now close the bottle tightly and chill for 3-4 days, shake vigorously every day. The multigrain is ready when all the candies are dissolved.