Even when I sift I still get PS lumps in my fondant! I try to squeeze all the litte hard lumps out but wow my hands hurt after! Is this just something I will have to live with using MMF or is there something I can do???
TIA
Coat it really well with shortening, double wrap it, seal it and try putting the MMF into the fridge to rest overnight. Let it come back to room temperature before using it. The bumps/lumps of PS should melt and incorporate into the MMF while it rests. HTH!
Oh wow I am gonna try that! Thank you for the advice! So much easier then giving my hands a tough workout! lol
This also could be caused by two other things. Heating mini mm too long tends to cause what looks like hard plastic bits. to avoid this I use the larger marshmallows (Jetpuff)16oz bag. I pour 4 tbs of bottle water over the top microwave 30 sec stir and heat another 30 stir and do another 20 if needed. comes out smooth everytime. The other issue I have had happen was when I use a cheaper marshmellow(like walmart brand) and i use my stronger (90% alcohol)grade flavors a chemical reaction happens and the mm sizzle and cause the same plastic bits as over heating....it is the craziest thing...not what you want to happen at three in the morning and it happens to be the last bag of mm...lol not sure if my comment helps just figured I would throw out another trouble shooting idea 
PS: I store each batch wrapped in plastic and stored in a large recycled fondant tub. That way i can stick to my pricing since I know how many batches I need to cover my project.
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