For a private revision snack, choose a plain bar with a stated cocoa percentage if that specification matters most, or a smaller, defined format if you would rather not portion a block yourself. Cadbury Darkmilk is listed by Tesco at 38% cocoa solids, while KitKat 2 Finger Dark is a 20.7g wafer snack; neither should be mistaken for a plain 70% cocoa bar. The Department for Education says chocolate and chocolate-coated products must not be served during the school day under the food standards for state-funded schools in England.
If a declared percentage is your main criterion, look at plain bars that print it clearly. Lindt describes its Excellence Dark 70% bar by its cocoa percentage; you would still need to portion its 100g bar yourself.
Cadbury Darkmilk offers a different choice from a plain 70% bar. Tesco lists the 90g Darkmilk bar at 38% cocoa solids, so compare its stated percentage rather than relying on the word “dark”.
KitKat 2 Finger Dark is listed by KitKat as a 20.7g wafer snack covered in dark chocolate. Its individual size may suit a short break when dividing a larger block is inconvenient.
Decide whether cocoa percentage or a defined portion matters more, then check the exact ingredients and where the snack will be provided.
| Priority | What to check | Your needs |
|---|---|---|
| Cocoa percentage | Find the cocoa-solids percentage for the exact bar. Distinguish a plain bar from a dark coating or dark-milk product; Tesco lists Cadbury Darkmilk at 38% cocoa solids. | “Dark” alone is not enough for me: I want a stated percentage so I can compare plain bars. |
| Portion format | Compare pack weight with the stated serving size. KitKat lists 2 Finger Dark at 20.7g; a 90g or 100g block needs dividing if you want a smaller amount. | A single defined snack fits my break better than leaving an open block beside my notes. |
| Nutrition label | Compare sugars and energy on the same basis: per 100g or per serving. KitKat lists 9.2g sugars for its 20.7g 2 Finger Dark product. | I want to know what the label counts as one serving before comparing two different formats. |
| Ingredients and allergens | Read the current pack’s ingredients, emphasised allergens and any precautionary statement. KitKat 2 Finger Dark includes wheat and milk ingredients; Tesco’s Cadbury Darkmilk listing includes milk and soya and says it may contain nuts. | I need to check the exact bar rather than assume that dark chocolate has the same ingredients across brands. |
| School setting | Establish whether the food will be supplied by a state-funded school in England during the school day. Department for Education guidance says chocolate and chocolate-coated products must not be served in that setting. | If I am arranging school-provided revision snacks in England, I need an option permitted by the school food standards instead of a chocolate bar. |
The name may describe a coating or chocolate style rather than give the cocoa-solids percentage. Tesco lists Cadbury Darkmilk at 38%, whereas Lindt labels its Excellence Dark bar 70%.
Choose the percentage you want to compare, then check that figure on the exact product or pack.
A 90g or 100g block is a different format from KitKat’s stated 20.7g 2 Finger Dark product. The block does not determine how much you take for one break.
Divide a block before starting, or compare individually sized products and their per-serving labels.
Ingredients differ between products: KitKat 2 Finger Dark includes wheat and milk ingredients, while Tesco lists milk and soya for Cadbury Darkmilk, with a precautionary nut statement.
Read the current pack for the exact format, including its ingredients and precautionary statements.
The Department for Education’s school food guidance says chocolate and chocolate-coated products must not be served across the school day in state-funded schools in England. That scope is distinct from a private revision snack at home.
For a snack supplied in that school setting, check the school’s arrangements and choose a permitted alternative appropriate to its allergy policy.
These examples show why a familiar chocolate-bar name is not, by itself, a cocoa-percentage specification.
Cadbury lists Bournville Classic Dark and Darkmilk bars in the UK; they are distinct products rather than interchangeable high-cocoa options.
KitKat lists 2 Finger Dark and 4 Finger Dark wafer formats in its UK collection.
Galaxy presents its UK bar collection as a milk-chocolate collection.
Mars offers caramel-and-nougat chocolate bars in formats including fun-size portions.
Snickers is a peanut-containing milk-chocolate bar, a different format from plain dark chocolate.
Twix’s Twin Finger product combines chocolate coating, caramel and biscuit.
These bars are options for readers choosing a plain dark-chocolate block with a percentage in its product name. Portion a block yourself for a private revision break, and check its current pack before buying if ingredients or allergens affect your choice.
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A 90g block for someone choosing by a stated 70% cocoa figure and dividing the bar for a revision break. Check the current pack’s serving and allergen information.
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This 90g block has 85% in its product name for readers comparing stated cocoa figures. It still needs dividing if you want a smaller snack; check the pack’s ingredients and allergens.
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A 100g plain dark bar with 85% cocoa in its product name. Decide how much of the block to take for one break, and read the current pack for ingredients and allergens.
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This 100g block states 72% cocoa in its product name, giving you a percentage to compare with other plain bars. Portion it yourself and check the current ingredients and allergen statements.
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A 100g block labelled 85% cocoa for readers selecting a plain bar by its stated percentage. Check the pack for serving information and the exact allergen statement before choosing it.
No. Check the stated cocoa percentage for the exact product: Lindt labels its Excellence Dark bar 70%, while Tesco lists Cadbury Darkmilk at 38% cocoa solids. A dark description without a percentage does not establish one.
No. KitKat describes it as two wafer fingers covered in dark chocolate and gives its weight as 20.7g. The stated 67.1% is the proportion of the bar that is dark chocolate, not a 67.1% cocoa-solids figure for the finished snack.
Not under the school food standards during the school day. The Department for Education says chocolate, confectionery and chocolate-coated products must not be served in that state-funded school setting in England; this does not determine the rules for private packed snacks or schools elsewhere in the UK.
No. KitKat 2 Finger Dark includes wheat and milk ingredients, and Tesco’s Cadbury Darkmilk listing includes milk and soya and says it may contain nuts. Read the ingredients and precautionary statements on the exact current pack.