To keep hard candy hard, sprinkle it with finely ground sugar and store it in an airtight container.
Here's a more detailed breakdown:
The Enemy: Humidity
The primary reason hard candy becomes sticky and soft is humidity. Hard candy is essentially sugar, and sugar is hygroscopic, meaning it readily absorbs moisture from the air. This absorbed moisture causes the candy to dissolve slightly on its surface, resulting in a sticky, gooey mess.
The Solution: Minimizing Moisture Exposure
Therefore, the key to maintaining hard candy's hardness is to minimize its exposure to moisture. Here’s how to do it effectively:
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Airtight Containers: Use airtight containers like jars, tins with tight-fitting lids, or resealable plastic bags. Make sure the container is properly sealed to prevent moisture from entering.
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Sprinkling with Finely Ground Sugar (or Powdered Sugar): Coating the candy with finely ground sugar or powdered sugar acts as a barrier. The sugar absorbs moisture before it can reach the candy itself. Think of it as a sacrificial layer of dryness.
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Avoid Mixing with Other Candies: Soft candies or those with fillings release moisture. Storing hard candies with them will accelerate the softening process. Keep hard candies separate.
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Cool, Dry Storage: Store the candy in a cool, dry place, away from direct sunlight and heat sources. A pantry or cupboard is generally a better choice than a refrigerator, as refrigerators can often have high humidity levels. If refrigeration is necessary (e.g., in extremely humid climates), ensure the candy is exceptionally well-sealed.
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Re-seal Immediately: Whenever you take candy out of the container, reseal it as quickly as possible. Prolonged exposure to air, even for short periods, can contribute to stickiness.
In Summary:
Keeping hard candy hard is about preventing moisture absorption. Airtight storage and a protective coating of sugar are the most effective methods. Following these steps will significantly extend the shelf life and enjoyment of your hard candies.
