Empire I found myself leaning heavily on Empires this month, still in good form after half a year in cold storage. The flavor intensities of these apples varied, depending I suppose on how they had been stored and handled. Smartfresh, a widely used gas that blocks fruit-ripening (by suppressing ethylene), has the side effect of diluting flavor, though this wears off. April is typically when the harvest in the Southern Hemisphere comes north. These apples are six months fresher than fall's crop, though both undergo cold storage in controlled atmospheres before they arrive in supermarkets here in North America.