Wow.
Here is a "gross measurement" test: Hold the top of the packet and shake all of the product to the bottom. (It should be kinda fat). The correct amount should fit just below the product ID#and expiration date.
I just did it myself (I know my packages have the correct amount), and that's what I determined.
I'm not saying there isn't a problem with your packets, however, these MF portion sizes just might be smaller than you're used to?? Maybe?
Maybe someone might be willing open up one of their packages of chili for you and calculate the approximate ounces of the dry product. (I would, but I don't plan on eating chili today, and I don't have any ziploc bags!)
Hope that's helpful.