How much water do I need to cook my rice?

Here's a general rule: For every cup of rice you cook, you'll need two cups of water. However, Dan Souza, the executive editor of Cook's Science at America's Test Kitchen and one of the authors of "The Science of Good Cooking," told Business Insider that this isn't always true. There are a number of other factors that influence how much water you're going to need, including what size the pot is and how much evaporates.

"If you have a ratio of 1:2 and you double that to 2:4, you're saying you're going to get double evaporating because you doubled it, and that's not true," he said. So keep this in mind the next time you try to double your portions.