Hello, I bought a lot of Lagrange yoghurt ... but in addition they are more 3 fragiles- broke in the dishwasher below the level of the screw (looking good they are thinner and slightly higher those sold with the yogurt maker) .I myself am also procured in supermarkets (same brand) and they are the same as fragile ... However advised me to contact Amazon directly for Lagrange submit the problem after sending copy of invoice I received 3 pots replacement. I appreciate this goodwill gesture. Otherwise very practical, lids allow them note the date and fragrance. It is true that it takes 3 sets of yoghurt pots to ensure proper rotation ... By cons prices vary from one place to another (always for the same brand)! Pou info I also use the Alsa ferments (new product) sold in supermarkets (large retailers) in yeast radius - taste and great result.