What goes wrong

It went sticky or soft

Updated October 2026

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Why these products are so vulnerable Humidity on the day of making matters too The package is the main defense Pieces stick to each other, which compounds it Do not re-dry and sell it Measure the room References

A hard candy that has gone tacky or a brittle that has softened has taken water out of the air, and it happens faster than people expect.

Why these products are so vulnerable

A hard candy is an amorphous sugar glass with very little water in it, sitting next to air that has more. The difference drives moisture in, and the surface becomes tacky, then sticky, then begins to lose its shape.

Humidity on the day of making matters too

A batch cooked and cooled in a humid kitchen starts life with more surface moisture than one made on a dry day, and it never catches up. Makers in damp climates learn to avoid certain days, and makers who do not track it conclude the recipe is unreliable.

The package is the main defense

A jar with a real seal, a wrapped piece, or a tin that actually closes. For individually wrapped pieces the wrap is doing the work; for a jar it is the closure and the liner. This is the clearest case in the property where the container is part of the product.

Pieces stick to each other, which compounds it

Once tacky, pieces fuse into a mass that cannot be separated without breaking them. A dusting, an interleaving, or individual wrapping is the answer, and deciding which is a decision about how the product is eaten rather than only about how it keeps.

Do not re-dry and sell it

Surface moisture that has been absorbed has also started dissolving and recrystallizing the surface. Drying restores the look partially and not the quality, and a product that softened once will do it again faster.

Measure the room

A cheap hygrometer in the kitchen and in the store room turns this from speculation into a number, and tells you whether the problem is your process, your building or the season.

References

21 CFR 114, Acidified Foods, whose 114.3 definition applies only to foods with a water activity greater than 0.85 — which is why most confectionery sits outside it. law.cornell.edu

21 CFR 101, Food Labeling, which carries the general requirements that apply where there is no standard of identity: the statement of identity, net quantity, ingredient list, allergen declaration and the name and place of business of the responsible party. law.cornell.edu

Written from federal regulation and the published physical chemistry of sugar and cocoa butter, not from a laboratory. The chocolate standards of identity are specific and the sugar confectionery names are not, which is the main thing to carry away. Anything here is a starting point for a conversation with your state department of agriculture, not a determination that you comply.