That's why I qualified 1 gallon/3.8 liters as a "comfortable" minimum, if you're planning water storage for your dwelling, given the size of containers and your

That's why I qualified 1 gallon/3.8 liters as a "comfortable" minimum, if you're planning water storage for your dwelling, given the size of containers and your not needing to carry it anywhere, you might as well initially splurge. If the disaster lasts long enough, and you can't get more, you can cut down to ~2 liters/half a gallon some time before you run out. And I like to brush my teeth....