Powdered Sugar for Royal Icing

I will admit to never sifting.  Sometimes I will run a whisk through it but I usually don't bother.  I haven't had an issue with clumps, either.

Moved this question to the icing issues forum area - seems like more of an icing question than one related to a decorating technique.

P.S. I don't sift my powdered sugar. I use C&H and never have trouble with it properly dissolving and/or plugging parchment cones.

I do not sift either. I never have problems with clumping.

Wow, could it be I don't need to sift! How funny, I never even tried not doing it.

Thanks!

Because I'm just a hobby decorator and rarely sift more than 2 1/2 pounds at a time, I use a battery-operated sifter.  I have also just "not sifted" - but I seemed to always have some clumping when I didn't sift ...and I use a store brand confectioner's sugar which is likely not the best.  The sifter has lasted since I bought it in 2011 and if I don't overload it (no more than half full) it works really rapidly.  I got really tired of standing there beating the side of a sieve and all of my crank sifters seemed to throw flour or sugar around.  I bought my battery-operated sifter on Amazon for about $12.

I don't and never have had to sift. I use C & H  which stands for California and Hawaiian.

...And I ALWAYS sift! The relative humidity is quite high in my baking kitchen, and when I don't sift clumping is an issue. It even starts to re-clump after sifting if I let it sit too long. (I've had to push cake frosting through a sieve before to deal with it, and that's after ten minutes of beating on high!)  I suppose it's just a where-you-are sort of thing. 

I purchase seven-pound bags from Sam's and sift as I need it, using a sieve and a spoon.

I use the brand from Sam's too, and I never sift!  I might whisk it a bit if it seems clumpy

i used to not sift...then I was doing detailed piping on about 30 cookies and the stuff kept clogging. I had to remake a whole thing of black icing. It wasted so much time and I was so worn out by the end! Now when I start to get lazy and not want to sift, I think of that day! 

Oh and I just shove mine through a metal mesh bowl with a spatula Into my mixing bowl. It's tedious when I have to make a lot, but doesn't take too long.