After the initial excitement of dyeing yarn with a drink wore off, I realized how restricted I really was with the colors. I left the store without any sugary drink mixes that day and vowed to figure out something else to use that would give me the rainbow of colors I wanted. And food coloring seemed like the most obvious choice.
Step 1: Supplies
Yarn - Your yarn has to be 100% animal fiber. This means wool, alpaca, cashmere, etc. Wool is the easiest to work with and the least expensive, so I recommend starting with that. There are a lot of wool yarns to choose from which can be confusing sometimes. If you're having a hard time deciding on which yarn to buy, I recommend Lion Brand Fishermen's Wool. It's a worsted weight, which makes it very versatile, you get a lot of yarn for your money (465 yards!), and it's pretty inexpensive. Usually it sells for ten dollars or so, and even less if you bring a coupon to the craft store. (Make sure you check your craft store's website for one. Michaels, Hobby Lobby and Joann's usually have a coupon for 40% off one item!
Small spoon or scooping device
Microwave safe bowl - clear glass will be helpful later on but it's not required
Food coloring - You can use every day grocery store food coloring just as well as Wilton's gel food coloring. Each one will give you good results. The only difference between the two is saturation. Wilton gel food coloring is a lot more concentrated so you'll be able to get much brighter, richer results with it. They also have a ton of colors to choose from and can be found in the same craft store you found your yarn in.
Gather everything together and get ready to dye some yarn!