Some cane sugar is whitened by filtering it through charred cattle bone. The sugar holds no bone, but the process is animal, so it depends on the brand.
The issueBone char used as a filter
Usually fineBeet sugar, organic, certified vegan
VerdictSometimes
Where it hides
Some white and brown cane sugar
Confectioners and icing sugar
Anything sweetened with refined cane sugar
What is going on
This one surprises people because the sugar itself contains no animal matter. Some cane-sugar refineries pass the syrup through bone char, a filter made from charred cattle bones, to strip colour and produce a bright white product. The char never enters the sugar, but an animal product is used to make it, which is why strict vegans treat bone-char-refined sugar as non-vegan.
Why it depends
The practice is far from universal, so the answer really is it depends. Beet sugar is not processed this way, organic cane sugar generally avoids bone char, and a growing number of brands are certified vegan or state their process. Raw and unrefined cane sugars skip the whitening step too. If a recipe just calls for sugar and this matters to you, beet or a labelled vegan sugar is the simple safe choice.
L-cysteine (E920)L-cysteine softens dough and often starts as animal keratin, from feathers or hair. Fermentation-made and synthetic versions are vegan, so it genuinely depends.
HoneyHoney is made by bees, and bees are animals, so honey is not vegan. Maple syrup, agave and date syrup are the usual swaps.
Frequently asked
Does sugar contain bone?
No. Bone char is used only as a filter to whiten some cane sugar, and it does not end up in the final product. The objection is that an animal product is used in processing, not that bone is in your sugar.
Which sugars are vegan?
Beet sugar, organic cane sugar, raw and unrefined cane sugars, and any sugar certified vegan generally avoid bone char. Standard white cane sugar is the one where the refining method varies by producer.
The sources
What each verdict rests on. Read them yourself.
Bone char (uses in sugar refining) · Wikipedia (with cited references), 2024 · background on bone char as a decolourising filter in cane-sugar refining
The same clear-eyed sourcing behind these verdicts, applied to each day’s news: what actually moved veganism forward, quoted and checked before you read it. One short brief, free.
