Visit the Street Vendor in northern Kakariko Village. He will sell you your first Bottle for 100 Rupees. He will ask you to hold it up above your head for all to see, since that's good for business.

One easy method to pour water or any other liquid from one container to another is by using a tall kitchen tool, like a spatula or chopsticks. It doesn’t matter if it’s silicone, wood, or metal, ...