For one snack on a top-up shop, start with the bag weight and serving information rather than its appearance: the individual crisp formats described by Walkers, Seabrook, REAL and Tyrrells range from 25g to 40g. Then compare nutrition per bag and check the ingredients and allergen wording for the exact flavour, especially if you are choosing between plain and seasoned crisps.
The useful checks change depending on whether you want one packet now, are comparing what is in the whole bag, or need to inspect a particular flavour’s ingredients.
Check the net weight and serving declaration before picking up a bag. Walkers Ready Salted has a 25g pack, Seabrook Sea Salted a 31.8g bag, REAL Sea Salt a 35g bag and Tyrrells Sweet Chilli & Red Pepper a 40g pack described as one serving.
Look at the figures for the packet you intend to eat, not just a per-100g panel. A larger bag and a different recipe can change the amount in the whole packet.
Read the ingredients and allergen wording on the exact flavour. GOV.UK’s food-labelling guidance identifies packets of crisps as prepacked food and says that any of the 14 regulated allergens present as ingredients must be clearly labelled in the ingredients list.
Choose the pack format first, then compare the label for the particular recipe. Per-bag figures help with one-snack decisions; per-100g figures help compare products sold in different sizes.
| Priority | What to check | Your needs |
|---|---|---|
| Bag size | Check the net weight and stated servings. Compare the packet with the amount you want to eat, rather than judging its size by the packaging. | I want one packet for this top-up shop, not a sharing bag or a multipack. The individual formats documented by Walkers, Seabrook, REAL and Tyrrells include 25g, 31.8g, 35g and 40g bags. |
| Nutrition per bag | Find the calories and salt for the exact pack and flavour. Walkers Ready Salted lists 130 kcal and 0.34g salt per 25g; Tyrrells Sweet Chilli & Red Pepper lists 201 kcal and 0.44g salt per 40g pack. These are different recipes and pack sizes, not a like-for-like recipe comparison. | If I plan to eat the whole bag, I want its total figures. I can use per-100g values to compare products of different weights, then check what the chosen packet contains. |
| Ingredients and allergens | Read the exact flavour’s ingredients and any precautionary wording. Seabrook Cheese & Onion and REAL Strong Cheddar & Onion list milk-derived ingredients; Walkers Ready Salted carries a factory-handling statement for several allergens. | A dietary label on one flavour does not answer my question about another. I need the current packet’s wording for the ingredients and allergens that matter to me. |
| Flavour and style | Choose between a plain salted recipe and a seasoned one, and check the product description if a hand-cooked style matters to you. A cooking-style description is not a measured texture comparison. | Sometimes a plain sea-salt flavour is what I want; at other times I am shopping for a particular seasoning. Either way, I still need to check that flavour’s label. |
Pack weight and recipe both matter. Walkers Ready Salted lists 130 kcal and 0.34g salt per 25g pack, while Tyrrells Sweet Chilli & Red Pepper lists 201 kcal and 0.44g salt per 40g pack; neither set of figures describes every flavour in its range.
Compare the serving size, calories and salt on the exact bag you are considering.
A vegetarian or gluten-free description does not settle whether a seasoned flavour contains milk. Seabrook Cheese & Onion and REAL Strong Cheddar & Onion both list milk-derived ingredients.
Read the full ingredients list and highlighted allergens on the current packet, along with any relevant precautionary statement.
Some ranges offer both formats: Tyrrells lists 40g and 150g Sweet Chilli & Red Pepper packs, while REAL Sea Salt is listed in 35g and 150g bags.
Check the net weight before choosing, particularly when similar-looking bags sit together.
These product examples show how pack formats and recipes can differ; check the flavour and packet in front of you rather than applying one product’s details to a whole brand.
Walkers Ready Salted and Lightly Salted have published nutrition figures for 25g portions.
Tyrrells describes its Sweet Chilli & Red Pepper 40g pack as one serving and also lists a 150g format.
KETTLE Chips lists an 18 × 40g case format, while its Lightly Salted product page provides ingredients and dietary information.
Seabrook publishes per-bag information for its 31.8g Sea Salted and Cheese & Onion crisps.
Pipers Anglesey Sea Salt lists potatoes, sunflower oil and Anglesey Sea Salt PDO among its ingredients.
REAL lists Sea Salt in both 35g and 150g bags.
These options include flavoured 55g and 60g bags, plus a Walkers multipack containing six 25g bags. Check the pack format if this top-up shop is for just one bag to eat now.
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A 60g bag for someone choosing the Savory Salted Egg Yolk flavour rather than a plain salted crisp. Check the packet’s ingredients, allergens and nutrition for the whole bag before buying.
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A 55g bag for a cheese-pizza-flavoured choice. Check the exact pack’s allergen wording and per-bag nutrition, particularly if ingredients in a cheese-flavoured seasoning matter to you.
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A 60g flavoured potato snack in the Flat variant. If comparing it with smaller grab bags, use its stated weight and check the packet for ingredients, allergens and nutrition per bag.
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A 55g bag for shoppers seeking a Hot & Spicy flavour. Read the packet’s full ingredient and allergen information if you have a dietary requirement, and check its nutrition for the amount you plan to eat.
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This is a multipack of six 25g bags, not a purchase of one loose grab bag. If the named salt claim is part of your choice, compare the exact pack’s salt figure and the claim’s stated comparison basis; check its ingredients and allergens separately.
Choose by weight and stated servings rather than packet appearance. Documented individual formats include Walkers 25g, Seabrook 31.8g, REAL 35g and Tyrrells Sweet Chilli & Red Pepper 40g; Tyrrells describes that 40g pack as one serving.
For a packet you intend to eat as one snack, check its per-bag calories and salt. Per-100g figures let you compare different products on the same weight basis, but you still need the bag weight to understand the amount in the packet.
No; suitability belongs to the specific product and its current labelling, not the plain-salted category. For example, Walkers Ready Salted carries a factory-handling statement covering milk, wheat, gluten, barley, soya, celery and mustard, while other plain products have their own dietary descriptions.
Read the ingredients list and any relevant precautionary statement on the packet. GOV.UK’s food-labelling guidance says packets of crisps are prepacked food and that any of the 14 regulated allergens present as ingredients must be clearly labelled within the ingredients list.
No; check each flavour separately. Seabrook describes Sea Salted as gluten-free, vegetarian and vegan, whereas its Cheese & Onion crisps contain milk-derived lactose and cheese powder.