The smell is that of isopropyl alcohol (aka rubbing alcohol). And I'm not surprised. This is the second Hamilton Beach product I've owned. The other is a one-cup coffee maker similar to a Kuerig--purchased in 2014. (I should have known better. I can't make coffee in that pot without both the smell and taste of chemicals. so I go and buy their microwave???) I put baking soda, vinegar, and a variety of cleaners through it. Nada. Still stinks and tastes bad. Now, fast-foward to December 2016. I'm in need of a microwave--a good one--but I don't have time to drop shopping for one, so I opted for this very cheap ($60) Hamilton Beach. I buy it, bring it home, and set it up. The very first thing I try in it is a cup of water (to see how long it takes to boil). The entire kitchen (and I have a big one) reeked of that chemical smell which reminds me of being in the ER. I have popped corn (guaranteed to change the smell of a diaper bin), steamed vegetables, etc., and no reduction in the scent. They are either using low-grade plastics or not allowing their plastics to cure. I'm going to force their hand. I'm first calling them to complain then returning the microwave and choosing another brand. The more people who do that, the faster they'll get to work on this issue. Check "Hamilton Beach odor/smell" on Google. MANY of their products have this issue. I am very sensitive to odors, and I cannot tolerate it. They get it back.
Smiths Grove, KY