Severin yogurt-Fix 14 serving glass

We also wanted our Yogurt prepare themselves and chose for this device because we found the serving glass handy. Indicated are 150ml in 1 liter of milk will definitely all 7 glass full (unless you boil the milk before, then overcooked course some of the liquid).
The first attempt was with fresh whole milk (3.8%), which we heated as described in the instructions to 90 °. At a temperature of 30 ° I have the plain yogurt mixed in (also 3.8%). The whole thing was ready to eat after about 6 hours. Very tasty, not bitter!
The next attempt was with a vanilla pod and the Mark, which I have also with boiled. In addition, I have added some vanilla sugar. Unfortunately, the result tasted indeed sweet with a hint of vanilla, but the effort to the boil, I'm going to the save in the future (for tips on how I can give the yogurt a vanilla flavor without using flavoring, I would be very grateful) ,
So the third attempt I started with H-milk. The already ultra heat treated and does not have to be boiled before it also has room temperature. The milk yogurt mixture I leave overnight in yoghurt maker to himself brooding and on the consistency and the taste it is no different from experiment no.. 1
The yogurt is creamy and is a little harder, if you put it in the refrigerator. I do not know how long he thinks as long as he never was with us, but was always the same eaten.
The glass I rinse in the dishwasher, the cap by hand. Evidence that you can wash the lid in the dishwasher, I can not find (and I would be grateful for advice!).