The capacity of the bottle is not too small (20cl). They can be cleaned in the dishwasher. The downside is that if poorly positioned in the dishwasher, they fill with water and then drying is long. Book with a swab and 2 recipes. But you can go to Seb site you will find several recipes. My children love, I made the kind with sugar and of course they add at the last moment of the syrup.