609145 Thu Apr 02 21:45:51 -0700 2009 1 31 Home Cooking 0 4563282 I have a sack of King Arthur self rising flour the has an expiration date of November of 2008.Do you 'hounds think that I could use it today and expect that it would react as self rising flour should??????????????????? Thanks for any insight...I should know this!! Thu Apr 02 21:45:51 -0700 2009 79603 nyfoodjoe 1 4564466 Self-rising flour is flour with a leavening agent mixed in (usually baking powder). The baking soda in the powder can age and become ineffective. To test if it's still good put some into a bit of warm water, if it fizzes it's still good. If it doesn't fizz, it can still be used as flour for breading. Fri Apr 03 09:46:43 -0700 2009 4563282 155034 alwayscooking