Food storage · Ireland

Cereal bars in your emergency supplies

How many packs of cereal bars your household needs, what the date on the label means, and allergens to check.

By the SupKit teamUpdated 2 min read

The short answer

Food past its use-by date is deemed unsafe and can't be sold. Past best-before, food may be safe but lower in quality.1 For 30 days, one adult would need about 94 packs on cereal bars alone, or 24 packs as a quarter of their food. SupKit estimate

What the date on the label means

  • Food past its use-by date is deemed unsafe and can't be sold. Past best-before, food may be safe but lower in quality.1

Store cereal bars somewhere cool and dry, and check each pack for damage before you use it.

How much to store

SupKit estimates one cereal bars (pack of 6) at about 720 calories, deliberately on the low side so stores aren't overestimated.2 An adult needs around 2,250 calories a day in SupKit's planning figures.

Nobody should live on one food, so this table assumes cereal bars make up a quarter of the food.

Household3 days7 days14 days
One adult3611
Two adults51122
Two adults and two children91938

The calculator above changes the household, the days and the share of food.

Allergies, dietary needs and children

Plan around everyone at home: allergies, intolerances and diets come first, and familiar food matters most for children. Recipes vary between brands, so always read the label of the product you buy.

FoodTypical allergensTypically suitable for
Cereal barsvaries by recipevegetarian

Typical allergens and diets are SupKit's guide to the main ingredient, not a product's label.

  • Irish (EU) law names 14 allergens: gluten cereals, crustaceans, eggs, fish, peanuts, soybeans, milk, tree nuts, celery, mustard, sesame, sulphites, lupin and molluscs.3
  • On packaged food, allergens must stand out in the ingredient list, for example through font, style or background colour.4
  • For unpackaged food, allergen information must be in writing and easy to find before you buy.3
  • 'May contain' warnings are optional, used only where cross-contamination can't be ruled out, and can't replace good manufacturing practice.4

Young children

  • Don't give whole nuts to children under five; crush or grind nuts, and spread nut butter thinly.5
  • Don't give honey to babies under 12 months, and don't add salt to a baby's food.6

Questions

How many packs of cereal bars for 30 days?

For one adult, about 94 packs on cereal bars alone, or 24 packs as a quarter of a mixed diet. This uses SupKit's estimate of 720 calories per pack and 2,250 calories a day for an adult.

What allergens do cereal bars contain?

Typically it varies by recipe. Recipes vary, so always read the label of the product you buy.

Sources

  1. Shelf-life: Best before and Use by Dates, Food Safety Authority of Ireland. Checked 28 October 2026.
  2. SupKit product catalogue (typical nutrition estimates), SupKit. SupKit's own planning data.
  3. Food Allergens - Advice for Consumers, Food Safety Authority of Ireland. Checked 28 October 2026.
  4. Labelling - Allergens, Food Safety Authority of Ireland. Checked 28 October 2026.
  5. Food choking risks for babies and children, Health Service Executive. Checked 28 October 2026.
  6. Foods to avoid during weaning, Health Service Executive. Checked 28 October 2026.

We summarise official guidance in our own words. Always follow advice from your local authorities.

One less thing to worry about

Let SupKit keep track of it for you.

Your food, water and essentials in one calm app, with reminders before anything goes out of date. Free for 7 days on iPhone and Android.

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