Raw Honey Guide · original research

How fast does your honey crystallize?

Typical months until first crystals form at room temperature (14–20 °C) for 19 common varieties, plotted on a log time axis. The number beside each bar is the glucose/water ratio — the single best physical predictor of crystallization speed.

1 wk2 wk1 mo2 mo4 mo8 mo1.5 y3 yTypical months until first crystals (log scale)AcaciaAcacia: 1.5 yr–3.0 yr (G/W 1.28)G/W 1.28TupeloTupelo: 1.5 yr–3.0 yr (G/W 1.22)G/W 1.22ManukaManuka: 9 mo–1.5 yr (G/W 1.58)G/W 1.58SageSage: 10 mo–1.5 yr (G/W 1.45)G/W 1.45SourwoodSourwood: 10 mo–1.5 yr (G/W 1.45)G/W 1.45ChestnutChestnut: 8 mo–1.2 yr (G/W 1.50)G/W 1.50HeatherHeather: 3 mo–8 mo (G/W 1.70)G/W 1.70LavenderLavender: 4 mo–8 mo (G/W 1.68)G/W 1.68EucalyptusEucalyptus: 3 mo–7 mo (G/W 1.72)G/W 1.72AvocadoAvocado: 3 mo–7 mo (G/W 1.72)G/W 1.72Orange BlossomOrange Blossom: 3 mo–6 mo (G/W 1.78)G/W 1.78WildflowerWildflower: 2 mo–6 mo (G/W 1.95)G/W 1.95BuckwheatBuckwheat: 2 mo–4 mo (G/W 1.85)G/W 1.85LindenLinden: 1.5 mo–4 mo (G/W 1.90)G/W 1.90BlueberryBlueberry: 1.5 mo–3 mo (G/W 1.95)G/W 1.95CloverClover: 1.5 mo–3 mo (G/W 2.05)G/W 2.05SunflowerSunflower: 2 wk–1.5 mo (G/W 2.30)G/W 2.30DandelionDandelion: 2 wk–1.5 mo (G/W 2.20)G/W 2.20Rapeseed / canolaRapeseed / canola: 1 wk–1 mo (G/W 2.30)G/W 2.30
Very fast (<6 wk)Fast (1–3 mo)Medium (3–8 mo)Slow (8–18 mo)Very slow (18+ mo)

Rule of thumb (Manikis & Thrasivoulou, 2001):

G/W above 2.1 ⇒ crystallizes within weeks. G/W below 1.4 ⇒ often stays liquid indefinitely. Every ~0.2 drop in G/W roughly doubles the time-to-crystallize.

Ranges are peer-reviewed typical values for pure monofloral honey stored at 14–20 °C in a sealed jar. Refrigeration (2–7 °C) accelerates crystallization — glucose solubility is lowest near 14 °C. Crystallized honey is not spoiled; warm the jar in a 35–43 °C water bath for 30–60 minutes to re-liquefy.