The Dyce process is elegant. Start with liquid honey at room temperature. Add a "seed" — a small amount (5-10% by weight) of already-finely-crystallized honey. This seed provides millions of tiny crystal nucleation points. Stir the mixture thoroughly, then hold at a controlled temperature (57°F / 14°C is the textbook target) for 5-14 days while stirring periodically.
During this time, glucose molecules in the honey crystallize around the seed crystals. Because the seed crystals are small and uniformly distributed, the new crystals that form are also small and uniform. The result is a smooth, creamy texture instead of the gritty, chunky crystallization you get when honey crystallizes on its own.
Temperature control is the critical variable. Too warm and crystallization doesn't happen (or happens too slowly). Too cold and the crystals form too fast and too large. The 57°F sweet spot allows controlled, even crystallization. Commercial producers use temperature-controlled rooms or jacketed tanks to maintain this precisely.
Agitation method varies. Some producers use mechanical stirrers (paddle mixers running at low speed). Others hand-stir in small batches. The agitation distributes the seed crystals evenly and prevents the formation of large crystal clusters. Over-agitation introduces air and creates a lighter, fluffier texture (closer to "whipped" in the literal sense). Under-agitation produces a denser, more butter-like consistency ("creamed").
The whole process takes 1-2 weeks from seed to finished product. The honey is then packed at the creamed consistency — it won't revert to liquid at room temperature, though it can soften in heat. Store below 70°F for best texture retention.