11.   A. Expiration dates for drugs are estimates of their shelf lives with proper storage in sealed containers, away from harmful and variable factors like heat and humidity.

12.   Aboard Mir, waste is stored in sealed containers until a Progress supply module arrives with fresh supplies.

13.   Cool, uncovered, then refrigerate the broth in a sealed container until ready to use.

14.   If you pack a granita in a tightly sealed container and keep it frozen, it will hold for a week or more.

15.   In the freezer, chicken should be kept in a tightly sealed container or heavy duty freezer bag for up to six months.

16.   It scoops up waste and deposits it into a sealed container that can be discarded or re-used.

17.   Keep in a sealed container in a cool, dark place up to six months.

18.   Let stand until cool, then put in tightly sealed container and refrigerate.

19.   Or they are hidden on cargo boats and trains and in sealed containers such as the one in which the Chinese met their death at Dover.

20.   Pack the tubers in dry vermiculite in a sealed container, or in peat moss that is just barely damp in mesh or plastic bags with lots of holes.