Hard candy is sugar glass. It looks solid and behaves like a very slow liquid, and the thing that ages it fastest is not time — it is water vapour in the air around it. Understand that one fact and the rest of this article is just detail.
What actually goes wrong
A clear lollipop left in a humid kitchen turns cloudy, then tacky, then soft. Three separate processes are happening at once, and they are worth telling apart because each has a different fix.
- Surface moisture. Sugar is hygroscopic: it pulls water out of the air and holds it. That water dissolves a microscopically thin layer of sugar on the surface, which is why the candy goes sticky before it goes soft.
- Clouding. Once there is water on the surface, tiny sugar crystals can start to form there and creep inward. That milky haze on an old lollipop is crystallisation, not dirt.
- Flavour loss. The volatile parts of a flavour — citrus oils, the sharper fruit notes — leave through the wrapper over weeks. This happens even in perfect storage, which is why a three-month-old lollipop tastes flatter than a three-week-old one.
The three things to avoid
1. The refrigerator
This is the mistake almost everyone makes, and it is the worst of the three. A fridge is a humid box with a fan. Candy goes in, condensation forms every time the door opens, and it comes out sticky and dull. Cold also makes sugar glass more brittle, so the pieces crack in the wrapper.
2. Direct sunlight and warm counters
Warmth accelerates everything above. A jar on a windowsill in July will show the difference in a week. Keep candy in a cupboard away from the oven, the kettle and the dishwasher.
3. Loose plastic bags
A thin zip bag is better than nothing and worse than almost everything else. Plastic film is a poor vapour barrier, and a bag that gets folded over repeatedly lets air in at the creases. Fine for a week, not for a month.
What we do at home, and at the shop
- Keep it wrapped. Parchment or waxed paper, twisted at the base, is what we use. If your candy arrived wrapped, leave it wrapped until you eat it.
- Use a tin, not a bag. A tin with a lid, or a glass jar with a rubber seal, is close to ideal. Metal tins block light as well as air, which is why the old-fashioned ones worked so well.
- Add a silica packet if you are storing for weeks. The little desiccant sachets that come with shoes and vitamins are exactly the right tool — food-grade ones are cheap, and one per tin is plenty. Do not eat them, and keep them away from small children.
- Separate the colours. Strongly coloured pieces can tint paler ones over months, and heavily flavoured candies will perfume a whole tin. Keep the citrus away from the lavender.
- Store cool, dark and dry. A pantry shelf away from appliances, ideally under 70°F. Basements in Minnesota work well in winter and badly in summer — use a hygrometer if you want to know for sure, they cost less than a box of candy.
How long does it keep?
Our honest answer: most of our hard candy is at its best within four to six weeks and perfectly good at eight. Clear, thin pieces age faster than dark, dense ones; the gradients and prisms show their age in about a month, while the butterscotch lanterns are still excellent after two.
We date every box by hand when it is wrapped. Use that date, not the date you received it, and eat the clear pieces first.
Can you rescue a sticky lollipop?
Sometimes. If the candy has only just gone tacky, unwrap it, put it on a sheet of parchment in a sealed tin with a fresh silica packet for 24 hours, and it will often come back to something close to its old self. Once it has gone visibly cloudy or soft through, it will not recover — the crystals are inside the piece now. It still tastes fine, it just looks tired. Crush it and stir it into hot tea, which is what we do with the casualties in the shop.
If you are giving it away
A box of handmade candy is a moisture-sensitive gift, so match the wrapping to the journey. For a same-week gift, parchment and a paper box are lovely. For anything travelling in a car or sitting under a tree until December, put the box inside a tin and tape the lid. And if you are shipping to a humid climate in summer, ask us to include a desiccant sachet — we will, at no charge.
The short version
Leave it wrapped. Keep it in a tin. Keep it cool, dark and dry. Never refrigerate it. Eat the clear ones first. That is the whole article, and it is more than most people do.
Written in the kitchen at 9301 3rd Ave S. If something here does not match your experience, tell us — we would rather fix the article than defend it: info@zexlavi.sbs.