One of those items the food industry has seen fit to downsize is boxed cake mix. The brand of cake mix I currently buy is typically sold in a 16.5 ounce box. This new size is no problem for someone who will strictly follow the directions on the package. Big problem, though, for the person who will use the mix as an ingredient in a recipe that specifically lists an older 18.25 ounce box of cake mix. That much change in the size of any ingredient can negatively alter the outcome of the recipe.
I have a number of recipes that make use of a packaged cake mix, and they can be very convenient on days when I need a quicker version of a good dessert. I do prefer to bake from scratch, but I'm no food snob; I do take short cuts. A person would have to live under a rock to have not been exposed to some great sweet creation that had its beginnings in a box of cake mix. Most of the recipes in my files were written in the day when cake mixes were bigger, so my recipes are no longer accurate. My solution to this issue is to keep a box of cake mix in the freezer to make up the difference when I need to boost the size of these shrunken cake mixes.
Every "new" 16.5 ounce cake mix needs 1.75 ounce from the extra box of cake mix to equal the "old" size. If it sounds like too much trouble to weigh out 1.75 ounces of cake mix to add those supplemental ounces when needed, don't worry. You really don't have to drag out the scales every time, just measure out 1/3 cup of cake mix to approximate the missing 1.75 ounces.
1.75 ounces dry cake mix = approximately 1/3 cup
This addition can prevent changes in the outcome of a recipe and in a worst case scenario, can keep a recipe from being ruined.
I'm sure there are plenty of other products out there that fall into a similar category where downsized products have caused problems with recipes. Does anyone have one you are willing to share?