How to sweeten cider?

You can sweeten cider by stopping fermentation before it finishes, by keeving, or by adding sugar, sweetener or fresh juice after fermentation. Added sugar must not start fermenting again in the bottle. BJCP says back-sweetened cider must be stable, and that gushing or haze from bottle refermentation is a serious fault.

Updated 2026-10-20

Key facts

Three routes. Arrest fermentation, keeve, or back-sweeten with sweetener or fresh juice. [1] [2]
Stabilise. Sorbate may be added at bottling; overuse can leave a geranium note. [1]
Avoid refermentation. Unwanted pressure and haze in the bottle are serious faults. [1]

What are the ways to sweeten cider?

Stop early. Arrest fermentation before all sugar is used. [1]
Keeve. Slow fermentation by depriving it of nutrients — the French défécation method. [2] See keeving vs backsweetening.
Back-sweeten. Add sugar, a sweetener or fresh juice after fermentation, then make sure the cider is stable. [1]

How sweet should I go?

Use BJCP's levels as a target: semi-dry is 0.4–0.9% residual sugar, medium 0.9–2%, semi-sweet 2–4%, sweet above 4%. [1] More in are ciders sweet.

Is priming sugar the same thing?

No — priming sugar is added to make bubbles, not sweetness. See sugar to add to cider and carbonate homemade cider.

Related answers: sugar to add to cider · keeving vs backsweetening

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Questions

Why do bottles gush after sweetening?

Live yeast can ferment added sugar in the bottle. BJCP treats turbidity, gushing or foaming from post-packaging fermentation as serious faults. [1]

Can sweetener be used instead of sugar?

BJCP allows sweeteners in many styles when declared. Non-fermentable sweeteners avoid feeding yeast but change the taste. [1]

Sources

2025 BJCP Cider Style Guidelines (v2) — Beer Judge Certification Program (BJCP)
C1. Traditional Cider (2025) — Beer Judge Certification Program (BJCP)