Filtration

Definition

Straining removes wax fragments and bee parts through a coarse mesh and leaves pollen intact. Fine filtration under pressure, usually with the honey warmed, removes pollen and the micro-particles that crystals nucleate on — which produces a clear product that stays liquid far longer on a shelf. Ultrafiltration goes further still and removes pollen entirely.

Where the word gets used loosely

Fine filtration is the reason a supermarket jar is still pourable after a year, and 'runny means fresh' is therefore backwards — raw unfiltered honey usually sets sooner precisely because it retains the particles crystals form on. Removing pollen also removes the evidence a laboratory would use to establish floral and geographic origin, which is why ultrafiltered honey is treated with suspicion in authenticity work.

Guide records that discuss this

• Raw, filtered and processed honeyWhat actually happens between the hive and the jar, which of it changes the honey, and why the word 'raw' carries less information than it appears to.
• What makes a honey taste floralFloral character comes from volatile aroma compounds that survive the journey from flower to jar. Very few do, which is why genuinely perfumed honeys are a small minority.
• How honey is gradedHoney grading measures colour, moisture, clarity and flavour defects. It says almost nothing about how good the honey tastes, which is a deliberate limitation rather than an oversight.
• How to read a honey labelSome words on a honey jar are legally defined. Most of the prominent ones are not, and the difference is not signposted anywhere on the packaging.
• Pollen analysis explainedMelissopalynology — counting and identifying the pollen grains in a honey under a microscope. It is how monofloral claims are substantiated, how geographic origin is challenged, and it is far less straightforward than it sounds.
• European honey standardsThe EU honey directive turns the Codex definition into binding law across the single market, adds labelling rules, and contains the two provisions that make European honey regulation distinctive: what filtered honey is, and that pollen is part of honey.

Question records that discuss this

• Is raw honey better than ordinary honey?Better for flavour, yes — raw honey keeps aroma compounds, enzymes and pollen that heating and fine filtration remove. Better for health, no: there is no good evidence that any of that produces a benefit. And 'raw' has no legal definition in most markets, so the word on a supermarket jar guarantees nothing.