Shoppers choosing a set portion
If you expect to eat the whole packet with supper, its pack size and calories are more useful for that decision than the per-100 g figure alone.
Who might consider these options?
Crisp eaters considering a different format
An individual oven-baked pack may appeal if you want crisps rather than a sharing bag. Compare the exact flavour and pack size before treating it as a swap.
Shoppers checking salt or allergens
A pack with fewer calories is not automatically lower in salt or suitable for a particular allergy. Check the current label for the exact product.
What should you compare?
Decide how much you intend to eat, then compare the nutrition information for that amount. A small snack bag, an individual oven-baked crisp pack and a hand-cooked sharing bag answer different portion needs.
Small crisp-style snack bag
Consider it: Seabrook lists 81 kcal for one 18 g Salt & Vinegar Crunchies bag if a small, ready-portioned potato snack suits you.
Bear in mind: Crunchies are not conventional sliced crisps; Seabrook also lists 448 kcal per 100 g and 0.39 g salt per bag.
Individual oven-baked crisps
Consider them: Walkers lists 96 kcal for a 22 g Oven Baked Sea Salt pack if you prefer a crisp in an individual packet.
Bear in mind: That product still lists 438 kcal per 100 g; check its current allergen statement.
Standard or hand-cooked crisps
Consider them: Choose the flavour or texture you prefer if you are happy to account for the portion you will eat.
Bear in mind: Tyrrells lists 208 kcal for its 40 g Lightly Sea Salted pack; a sharing bag needs a separate portion decision.
| Priority | What to check | Your needs |
|---|---|---|
| Portion calories | Read calories per pack or stated serving, its weight in grams and the number of servings in a larger bag. Use calories per 100 g to compare equal weights, not as a substitute for the portion figure. | I want to know what the packet or serving I plan to eat adds to supper, rather than comparing differently sized bags as though they contain the same amount. |
| Pack format | Check whether it is one small bag, a multipack of individual bags or a sharing bag. For a sharing bag, decide and measure your serving before eating. | An individual bag gives me a clear stopping point; with a sharing bag, I would rather put my chosen portion in a bowl. |
| Salt | Read salt per bag or serving alongside calories. For context, the NHS advises adults to have no more than 6 g of salt a day, including salt already in food. | If other parts of my supper contain salt, I want to account for the crisps as well. A smaller packet does not tell me its salt content on its own. |
| Ingredients and allergens | Read the ingredient list, suitability information and any ‘may contain’ statement for the exact flavour on its current pack. | I need the particular product to meet my dietary requirements; a plain-sounding flavour or familiar brand name is not enough to establish that. |
What is easy to overlook?
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Calling a small packet low-calorie without checking its weight
Fewer calories in a packet can reflect a smaller amount of food. Seabrook lists 81 kcal per 18 g Crunchies bag and 448 kcal per 100 g.
Compare both the portion you will eat and the per-100 g values when considering differently sized products.
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Treating a sharing bag as one serving
Tyrrells identifies five 30 g servings in its 150 g Lightly Sea Salted bag. The serving figure does not describe the calories in the whole bag.
Check the serving weight on the label and put the amount you intend to eat in a bowl.
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Looking only at calories
Salt is another part of the portion decision: Seabrook lists 0.39 g in an 18 g Crunchies bag. The NHS advises adults to count salt already present in food when considering their daily intake.
Read salt per portion and consider what else is in your supper rather than judging it from the pack size or flavour name.
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Assuming a simple flavour settles allergen suitability
Ingredients and precautionary allergen statements can differ between products and flavours. McCoy’s, for example, says its checked Salted Flavour product may contain milk, soya, gluten and mustard.
Check the current label of the exact pack you plan to eat.
Brand and product references
These nutrition figures refer to the named products and pack formats, not every crisp made by each brand.
Walkers
Walkers lists 96 kcal per 22 g pack for Oven Baked Sea Salt, compared with 130 kcal per 25 g pack for its checked Ready Salted crisps.
- The individual Oven Baked Sea Salt pack provides a stated portion for comparison.
- The two packs differ in weight; read the per-100 g values if comparing equal amounts.
Tyrrells
Tyrrells lists 208 kcal for a 40 g Lightly Sea Salted potato crisp pack and 140–141 kcal per 30 g serving for the checked lentil flavours.
- The stated serving weights make it possible to compare the amount you plan to eat.
- A lentil-crisp fat comparison is not a calorie comparison; use the energy figures for the exact product.
KETTLE Chips
KETTLE Chips lists 516 kcal and 29.5 g fat per 100 g for its checked Lightly Salted product.
- The product information identifies the checked variant as suitable for vegans and vegetarians and labelled gluten-free.
- Its 130 g sharing-bag format calls for a separate serving decision.
Seabrook
Seabrook lists 81 kcal per 18 g bag for Salt & Vinegar Crunchies, while its checked Sea Salted sliced crisps provide 164 kcal per 31.8 g bag.
- The Crunchies bag is a small, ready-portioned crisp-style snack.
- The two products have different formats and pack weights; the Crunchies bag also lists 0.39 g salt.
McCoy’s
McCoy’s lists 533 kcal, 32 g fat and 1.3 g salt per 100 g for its checked Salted Flavour crisps.
- The per-100 g panel allows an equal-weight nutrition comparison.
- The product page says it may contain milk, soya, gluten and mustard.
REAL Hand Cooked Crisps
REAL lists 495 kcal, 25.4 g fat and 1.12 g salt per 100 g for its checked Sea Salt & Black Pepper crisps.
- REAL describes its range as vegetarian and gluten-free; check the current exact-product label for your requirements.
- The per-100 g figure does not tell you the calories in a serving until you know its weight.
Joybuy crisp-style options
These Joybuy options include individual bags of oven-baked crisps and crisp-style snacks, plus a PopChips sharing bag. Check the serving size for the exact pack you choose; the product list is separate from the manufacturer examples above.
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PopChips Sour Cream & Onion, 85 g
This is a sharing bag, so decide how much to put in a bowl if you want a set late-night portion. Check the pack’s serving information and allergen statement before choosing it.
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PopChips Sour Cream & Onion, 5 x 17 g
Five individual 17 g bags give you a defined pack size for a crisp-style portion. Read the nutrition and allergen information for this multipack rather than applying figures from the 85 g bag.
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Walkers Oven Baked Variety Pack Crisps, 6 x 22 g
The multipack offers individual oven-baked crisp bags for a defined portion. Because it contains a variety of flavours, check the nutrition and allergen information for the particular bag you select.
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Walkers Oven Baked Cheese & Onion, 6 x 22 g
Individual 22 g bags suit a choice based on one packet rather than an open sharing bag. Check this Cheese & Onion variant’s own nutrition panel and allergen statement; do not use figures for Oven Baked Sea Salt.
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Wheat Crunchies Crispy Bacon, 6 x 20 g
Six individual 20 g bags offer a set portion of a wheat-based crisp-style snack rather than potato crisps. Check the current ingredients and allergen information, particularly if wheat, barley or soya matter to you.
Common questions
What should I compare for a late-night crisp portion?
Start with the calories and weight of the packet or serving you expect to eat. Then read salt per portion and the exact product’s allergen statement; use per-100 g figures when comparing equal weights.
Is an oven-baked crisp always lower in calories than a standard crisp?
No general conclusion follows from the cooking method alone. For the two checked Walkers products, Walkers lists 96 kcal per 22 g pack and 438 kcal per 100 g for Oven Baked Sea Salt, against 130 kcal per 25 g pack and 518 kcal per 100 g for Ready Salted. Check the figures for any other flavour or size separately.
Do I need to check salt if I am comparing calories?
Yes—calories do not tell you how much salt is in a portion. Seabrook lists 0.39 g salt in its checked 18 g Crunchies bag, and the NHS advises adults to count salt already in food as part of their daily intake.
Can I use a brand name to judge allergy suitability?
No. Read the ingredients and any precautionary allergen statement on the current pack of the exact flavour you intend to eat; these details can differ between products and variants.