StepDoWhy
BowlSpotless, grease-free metal or glassAny fat or yolk stops whites foaming
WhitesRoom temperature, no trace of yolkWhip higher and faster
StabilizePinch of cream of tartar or drop of lemonHolds the foam, harder to overbeat
SugarAdd slowly, only once foamyGlossy, stable meringue that still rises
StopSoft peaks droop, stiff peaks stand; no moreOverbeaten whites go grainy and collapse