Portion-conscious snackers
If you plan to finish one bag before lunch, its whole-pack calorie figure is more useful for that occasion than the per-100g figure alone.
Who this helps
Shoppers who prefer conventional crisps
If sliced-potato texture matters to you, compare the ingredients as well as the calories: baked products and formed potato snacks are not the same format.
Salt- and allergen-aware shoppers
Check the current pack’s salt and allergen statements alongside its calories, particularly when choosing a flavour or buying for someone else.
What to compare
Start with the portion you will actually eat; then decide whether its format, salt and ingredients meet your needs.
| Priority | What to check | Your needs |
|---|---|---|
| Whole-pack calories | Read kcal per bag and the bag’s weight. Use kcal per 100g as a separate check when pack sizes differ. | I plan to eat one bag, so I want its full calorie figure rather than a serving figure for only part of the pack. |
| Potato format | Check whether the ingredients describe sliced potatoes, potato flakes or dried potato and starch. Compare the weight of the packs you are considering. | Is a formed potato snack or baked crisp-style product what I want, or would I rather choose conventional sliced crisps? |
| Salt | Compare salt per bag as well as calories. Walkers lists 0.19g salt per 22g Oven Baked Sea Salt pack; Seabrook lists 0.30g per 18g Sea Salted Crunchies bag. | A lower calorie figure alone will not answer my question about salt, so I want both values from the current pack. |
| Allergens and ingredients | Read the statement for the exact flavour and pack, including any may-contain wording. Do not use a vegetarian or vegan label in place of an allergen check. | When I am buying for someone with an allergy, I need the current product-specific declaration before choosing. |
Common buying mistakes
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Assuming the smallest calorie figure means a comparable portion
Seabrook lists 82 kcal for an 18g Crunchies bag, while Tyrrells lists 208 kcal for a 40g Lightly Sea Salted bag. Those figures describe different amounts of food.
Compare kcal per bag for the snack you will eat, then read the bag weight and kcal per 100g to understand the portion-size difference.
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Treating every potato snack as a sliced crisp
Seabrook describes Sea Salted Crunchies as potato snacks made with dried potato and potato starch; its Sea Salted crisps list potatoes, oils and sea salt.
If conventional crisp texture matters, check the product description and ingredients before choosing on calories alone.
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Looking at calories but overlooking salt or allergens
A pack’s calorie value does not tell you its salt content or whether its label carries allergen warnings.
Read the current per-pack salt value and the allergen statement for the exact flavour you intend to buy.
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Using “HFSS” as a blanket school-meal rule
The Department of Health and Social Care’s nutrient-profiling model assesses individual foods using more than their calorie figure. England’s Department for Education school food guidance is a separate framework.
For a school or catering purchase, check the exact product information and the rules that apply to that school and nation rather than drawing a conclusion from the word “crisps”.
Brand and range references
A brand name is not a substitute for checking the particular range, flavour and pack size.
Walkers
Its conventional crisps and Oven Baked range offer different potato formats and pack figures.
- Walkers lists 96 kcal per 22g Oven Baked Sea Salt pack and 130 kcal per 25g Ready Salted pack.
- Do not carry a figure from one Walkers range or flavour across to another; check the pack you are buying.
Tyrrells
Lightly Sea Salted is a conventional potato crisp made with potatoes, sunflower oil and sea salt.
- Tyrrells lists 40g, 150g and 600g formats for this product.
- The listed 40g pack contains 208 kcal; compare its larger portion with smaller single bags before choosing.
KETTLE Chips
KETTLE Chips describes its hand-cooked range as made with British potatoes.
- The brand lists gluten-free, vegan and vegetarian product options.
- Check the individual flavour, bag size and nutrition panel rather than applying a range-wide description to one snack portion.
Seabrook
The Sea Salted products show why crisps and formed potato snacks need to be compared separately.
- Seabrook lists 82 kcal per 18g Sea Salted Crunchies bag and 164 kcal per 31.8g Sea Salted crisp bag.
- Crunchies contain dried potato and potato starch; they are not conventional sliced-potato crisps.
Pipers
Anglesey Sea Salt is a potato crisp containing potatoes, sunflower oil and Anglesey Sea Salt PDO.
- Pipers lists this flavour as suitable for vegetarians and vegans.
- Its stated 532 kcal per 100g is not a whole-bag figure; check the pack weight to work out the portion you intend to eat.
REAL Hand Cooked Crisps
REAL describes its hand-cooked crisp range as vegetarian and gluten-free.
- REAL lists a 35g pack format for its Sweet Chilli flavour.
- The Sweet Chilli figure of 502 kcal per 100g should not be read as calories per pack; check the exact pack’s declaration.
Joybuy product options
These options cover portioned baked and conventional crisps, plus an 85g popped potato snack that you would need to portion yourself.
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Walkers Oven Baked Variety Pack Crisps 6 x 22g
Six separate 22g bags make it possible to take one pack for a mid-morning snack rather than portioning from a larger bag.
Check the calories, salt and allergen statement for each flavour; the baked format is not the same as a conventional sliced-potato crisp.
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Walkers Oven Baked Cheese & Onion 6 x 22g
This six-pack offers a separate 22g bag when you want a defined portion of a baked crisp-style snack.
It is not a conventional sliced-potato crisp; check the current Cheese & Onion pack for calories, salt and milk and other allergen declarations.
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PopChips Sour Cream & Onion 85g
The 85g bag calls for a different portion decision from a small individual pack: measure the amount you intend to eat before using a per-serving calorie figure.
This is a popped potato-based snack rather than a conventional sliced crisp. Check the current pack’s milk and other allergen information.
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Walkers 45% Less Salt Mild Cheese & Onion 6 x 25g
Six separate 25g bags provide a conventional crisp option when that format matters more to you than choosing a baked or popped snack.
Read the current pack’s calorie and salt figures rather than treating the range name as a calorie comparison. Check its milk and other allergen declarations.
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Walkers Ready Salted/Cheese & Onion 12 x 25g
This mixed multipack gives you individual 25g bags of conventional crisps for a defined mid-morning portion.
Check each flavour’s own calories, salt and allergen statement; the Cheese & Onion flavour contains milk.
Questions about choosing crisps
Should I compare calories per bag or per 100g?
If you will finish one bag, start with calories per bag. Then compare its weight and the per-100g figure to see how much of the difference comes from portion size: Seabrook lists 82 kcal for an 18g Sea Salted Crunchies bag, while Walkers lists 130 kcal for a 25g Ready Salted pack.
Are baked crisps always lower in calories?
The word “baked” does not establish the calories in the portion you will eat. Walkers lists 96 kcal for a 22g Oven Baked Sea Salt pack, but you should check the current pack’s weight, calories and ingredients when comparing it with another product.
Does a lower-calorie bag necessarily contain less salt?
No conclusion about salt follows from calories alone. Walkers lists 0.19g salt per 22g Oven Baked Sea Salt pack, and Seabrook lists 0.30g per 18g Sea Salted Crunchies bag; read both values on the product you choose.
What if I am buying for someone with an allergy?
Check the current allergen statement for the exact product and flavour, including may-contain warnings. A potato-based recipe or vegetarian label does not replace that check.
Can I tell whether crisps are permitted in school meals from an HFSS label?
A category name or calorie figure cannot settle that question. The Department of Health and Social Care’s nutrient-profiling model scores individual foods using several nutritional inputs, while the Department for Education’s school food guidance applies to England. For a school purchase, check the exact product and the rules applicable to that school and nation.