Originally Posted by mamawrobin
I read a post the other day on another thread that said not to beat the shortening for more than 3 to 4 minutes before adding anything or you'll get "air pockets
It is actually just the opposite.
Here's how I explain that:
you're sitting on a sandy beach .... the smoothest and finest sand you've ever touched. Notice how you rub your hand across the sand and it leaves beautiful smooth path, much like when we move a spatula across really smooth icing.
But .... let a little tiny pebble get caught under your hand and when you run your hand across the sand, the pebble leaves a trail in the sand ... an 'air pocket' if you will. The same as if your spatula gets a particle of "non-pulverized" fat under it and the lump of fat will leave a trail in your smooth icing.
That's why you need to "beat the heck!!!!" (and I dont' use the word 'heck'!) out of the fat/icing .... to make sure those fat particles are beaten down into super tiny fine particles. Just like the ocean beats those pebbles down into super tiny fine particles of sand.