Honey is one of the most commonly adulterated foods in the world, and overseas countries or buyers often want confidence the honey being sold to them is authentic. The United Nations publishes an international standard for honey as part of its Codex Alimentarius (CODEX) range of standards, and this is widely referred to when checking for honey authenticity. Many of the tests that can be asked for in honey—including things like C4 Sugars, diastase, HMF, moisture, and conductivity—arise from this CODEX standard. This article gives an overview of what it contains, so you have a better idea of why you may be asked for such a range of honey test results.