Fruit smoothies are super easy to prepare in the mixer and can be easily filled. It's a little difficult to estimate the exact amount. The whole thing is me doing a little crowded ... the second time around it went but already super and without spilling. The filling itself is no problem. Squeezing with two fingers of one hand the two ends and then just tilt the porridge into the round opening until it is about half full. Then just two fingers stripe down from left to right to make sure that everything is. The content is much more than the little bag that you can buy in the supermarket so. In addition, you know what you what's inside.
We have already put in the fridge and there forgotten for a few days ... The result a few slightly harder residues which could however be removed with warm water and a small toothbrush super easy.
The 4 sachets are worth their price. Good quality and after some time you get the cost out when it counted again against the expensive supermarket alternative.