Hi Ashley! I am by no means an expert but just a thought..When you measure rather than weigh, there can be a significant difference just due to how compacted the ingredients in the cup are from one time to the next. I know that when people are baking and want to be super accurate, they weigh flour and other ingredients normally measured because of the differences in how you scoop each time. I’m just deciding myself that I probably need to start weighing things like baked potatoes because it can vary quite a bit with how compacted in the cup it is. Even spinach I’m not sure how you measure..I always cram it into a measuring cup lol! I’m def going to start weighing all of the remaining foods I wasn’t before. More food research!