Help Plz.how Will Buttercream Frosting Last Room Temperature
Decorating By cherryz Updated 6 Jun 2009 , 11:49am by ziggytarheel
Why does is need to last a whole week? If it has any real dairy in it like butter or milk then food safety comes first and it will only last till the dairy products expiration date and should not be left out more then 4 hours at temps more that 60'F I think. All shortning butter cream would be ok but I still wouldn't leave it out a whole week.
If a cake is iced in buttercream, and has milk in it- it should stay in the refridgerator right?
Although a real buttercream has dairy (butter and/or milk) it will last at least a week. The amount of sugar you put in the buttercream acts as a preservative and keeps it from going bad. I have eaten cakes that are up to 5 days old and never had any problems. The issue is that the cake starts to get stale the longer it is out because the air is getting to it once the cake is cut. There are a ton of threads here about this and I believe some people know better about the science behind how this works.
HTH!
Why does is need to last a whole week? If it has any real dairy in it like butter or milk then food safety comes first and it will only last till the dairy products expiration date and should not be left out more then 4 hours at temps more that 60'F I think. All shortning butter cream would be ok but I still wouldn't leave it out a whole week.
I have read many websites stating that this isn't the case, that dairy products have now been "preserved" with the addition of sugar. This is true for other products. In colonial days before the canning technology we are accustomed to, people preserved vegetables that would other wise go bad with the use of vinegar. Meats were (and still are) preserved by drying and using salt. An "original expiration date" can be changed and extended by proper preservation techniques. 
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