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.
Whole, hard boiled eggs do not freeze well; the whites will become tough and rubbery. You can freeze the cooked egg yolks of hard boiled eggs successfully as follows: (1) Place cooked yolks in covered airtight container or heavy-duty freezer bag; (2) Freeze yolks up to for 3 months for best quality. How to tell if hard boiled eggs are bad?