What he said ^^^
But maybe try the oven tek for sanitizing . If your really concerned about them being dry well... they'll definitely be dry after baking in the oven!!
I use Iodophor, an no rinse iodine solution to sanitize. If you use something like that or star san, they are no rinse and its ok if there are a few drops still on the bottle. Just get dump as much out as you can then fill em up!