Sodium stearoyl lactylate (SSL) forms strong bonds with the flour proteins during gluten development, improving dough strength. During protein denaturation at baking temperatures, these bonds weaken and SSL is able to translocate to the starch molecules, reducing their staling rates during storage 1.
Place the ice cube tray in the freezer and freeze the egg whites until firm. Pop the egg whites out and transfer them to a zip-top freezer bag and return to the freezer. Now, whenever you need one, two or three egg whites for an egg-white-only recipe, you have them, premeasured, at your disposal.
It depends what type of formula you are using. Itâs best not to store a feed you've mixed yourself in the fridge to use later. However, you can store ready-made cartons of formula milk, once opened, in the fridge for up to 24 hours. That's because the milk in the carton is sterile. Wash your hands before opening the carton, or use clean scissors. Store the carton in the main part of the fridge where it is coldest.