Honey Electrical Conductivity Comparator

EU 0.8 mS/cm threshold separates blossom (≤) from honeydew (≥) honey. Conductivity tracks mineral & ash content — and correlates with color and antioxidant load.

BlossomNear thresholdHoneydew / exception
Acacia
0.16
Clover
0.22
Sage
0.29
Lavender
0.32
Orange Blossom
0.35
Tupelo
0.39
Blueberry
0.41
Sourwood
0.45
Linden
0.53
Wildflower
0.54
Manuka
0.60
Eucalyptus
0.60
Avocado
0.70
Buckwheat
0.75
Heather
0.77
Chestnut
1.15
0.00.8 EU limit1.5 mS/cm
Chestnut exception: EU Directive 2001/110/EC lists chestnut honey as an explicit exception — botanically a blossom honey, yet its conductivity (0.90–1.40 mS/cm) exceeds the 0.8 mS/cm honeydew threshold. It may still be labelled as blossom honey in EU member states.
Sources: Bogdanov et al. (2004) Mitt. Lebensm. Hyg. 95:57–75; EU 2001/110/EC; White (1975). Values are representative midpoints; individual jars vary ±0.1–0.2 mS/cm.
Full guide → rawhoneyguide.com