Is your honey real? Did You Know? To test honey purity at home, try the water test (pure honey settles at the bottom and doesn't dissolve easily), the thumb test (pure honey sticks to your thumb and doesn't spread), and the vinegar test (pure honey doesn't react with vinegar), or the flame test (pure honey burns easily). Here's a more detailed breakdown of these tests: 1. Water Test: What to do: Place a spoonful of honey in a glass of water. What to look for: Pure honey will settle at the bottom