Chocolate
Sugar bloom: gritty dry surface that does not smear
2 likely causes, sorted by where the problem lives. Work down the list and change one variable at a time.
Likely causes
- environmentMoisture condensed on the surface, dissolved the sugar, then evaporated and left crystals behind.
- environmentRefrigeration followed by warming, or high humidity.
What to change
- Prevent the condensation in the first place: control storage humidity and wrap the chocolate.
- Bring chocolate to room temperature before unwrapping it.
- Accept that this one cannot be re-tempered away. Unlike fat bloom, it is not reversible.
Read it with the four domains in mind
FormulaThe recipe itself: ratios, quantities, and ingredient choice.
TechniqueWhat you did: mixing, shaping, timing, handling.
EnvironmentThe room: temperature, humidity, altitude, storage.
EquipmentThe gear: oven calibration, pans, mixer, tools.
Adapted from the master symptom matrices in Environmental Variables & Troubleshooting. General sourcing across these tables: Figoni (2011); Gisslen (2016); Corriher (2008); McGee (2004); Modernist Bread (2017); King Arthur Baking technical guides; BAKERpedia.
Other chocolate symptoms
Fat bloom: grey streaky film that smears when rubbed
Streaky, dull, or soft set
Seized into a grainy stiff mass
Too thick to coat
Chocolate & Confectionery · The full troubleshooting method · All 50 symptoms