The books / Forage and the Nectar Flow / chapter 19 of 21

Crystallisation is physics, not spoilage

All chapters
  1. The two-kilometre circle
  2. Why six kilometres costs more than it brings
  3. Three and a half kilos of nectar
  4. What a flow actually is
  5. Maple, willow and the first dandelions
  6. Fruit blossom and hawthorn
  7. The main flow: black locust and clover
  8. Linden in July
  9. The gap in the middle of the year
  10. Goldenrod and the winter stores flow
  11. Ivy, the last flow
  12. Oilseed rape, the flow that sets in the comb
  13. What makes a jar monofloral
  14. Putting a super on at the start of a flow
  15. Pulling it at the end
  16. Reading a capping percentage
  17. Eighteen point six percent
  18. Honey that ferments
  19. Crystallisation is physics, not spoilage
  20. Creaming by the Dyce method
  21. A year of varieties and what each is worth

Honey is a supersaturated sugar solution, which is to say it holds more sugar than it comfortably can. Glucose is the less soluble of its two sugars, so over time it comes out as crystals while the fructose stays dissolved.

How fast depends on the ratio between them:

  • under 1.11 fructose to glucose is the fast band
  • 1.11 to 1.33 the medium one
  • above 1.33 slow or effectively never

Temperature matters as much. Crystallisation runs fastest at about 14 degrees, and a store held between 10 and 16 will granulate. None of this is spoilage.