I'll bet using potatoes does makes the the question harder for people. However simple the math, it runs up against the intuition "potatoes are full of starchy s

I'll bet using potatoes does makes the the question harder for people. However simple the math, it runs up against the intuition "potatoes are full of starchy solids, I'll bet lowering their water weight one point wouldn't be that noticeable a change". Heck, I'll bet this is made harder by exposure to baked potatoes. The actual study on water loss via baking potatoes is paywalled, sadly, but discussion on some fitness forums says that there's a >5% weight loss from baking - which would constitute a 1-point change in water weight. Still an interesting question, but it feels a bit cheap to invoke a physical intuition that's completely irrelevant.