PhilD’s explanation is spot on. For this reason, I don’t buy “gelato” from the grocery store, because it never has the proper texture - the holding temperature in grocery store freezers is too cold. Letting the container sit at room temperature doesn’t restore that almost chewy texture that perfect gelato has, and I don’t think grocery store brands churn their product to achieve that texture in any case. IMO, Talenti and all of the other “gelati” available in the supermarket are simply ice cream with good marketing.