Seeing “use by” on a food package can raise a simple but important question: Can I still eat this after the date? The answer depends on what the label means and what type of food you are dealing with.
A use by date is generally connected to food safety, not just taste or quality. It tells you the date by which a food should be eaten when stored correctly. This is different from a best before date, which is mainly about quality.
Understanding the difference can help you avoid unnecessary food waste while making safer choices. This guide explains use by date meaning, how the label works, common examples, and how it differs from other date labels.
Updated for 2025: Food-labeling rules can vary by country, so always follow the instructions printed on the package and local food-safety guidance.
What Does “Use By Date” Mean?
A use by date is a date placed on certain foods to indicate the period during which the product is expected to be safe to eat when stored as directed.
It is most commonly found on foods that can become unsafe relatively quickly, such as:
- Fresh meat
- Poultry
- Fish
- Some dairy products
- Ready-to-eat chilled foods
- Prepared salads
- Other highly perishable foods
The key point is that a use by date is primarily about safety.
If a food has passed its use by date, you should not assume that it is safe simply because it smells normal or looks fine.
Simple Definition
In plain English:
Use by date = the date by which the food should be eaten for safety reasons, when stored correctly.
The exact rules can differ depending on where you live, so check the food label and guidance from your country’s food-safety authority.
Does “Use By” Mean the Food Expires?
Not exactly.
People often use the word “expires” for any date printed on food, but food labels can have different purposes.
A use by date tells you about safety, while a best before date generally concerns quality.
For example, a product with a best before date might still be acceptable after that date if it has been stored properly and shows no signs of spoilage. A product carrying a use by date should be treated more carefully because harmful bacteria may not produce an obvious smell or visible change.
That is why the phrase “use by” should not be treated as merely a freshness suggestion.
Use By Date vs. Best Before Date
This is one of the most common sources of confusion.
| Label | Main purpose | After the date |
|---|---|---|
| Use by | Food safety | Follow food-safety guidance; generally don’t eat it after the date |
| Best before | Food quality | Food may still be usable if properly stored and in good condition |
| Sell by | Retail/inventory guidance | Usually intended for sellers rather than consumers |
| Display until | Retail display guidance | Mainly helps stores manage stock |
The exact meaning of these labels depends on the country and labeling system.
Why the Difference Matters
Imagine you find two products in your refrigerator:
- Yogurt marked best before
- Fresh chicken marked use by
The dates may look similar, but they do not communicate the same thing.
The best-before date is generally about how long the manufacturer expects the product to retain its intended quality. The use-by date is more closely linked to safety.
Can You Eat Food After the Use By Date?
For foods carrying a use by date, the safest approach is not to eat the food after that date.
This is especially important for foods that need refrigeration and can support the growth of harmful bacteria.
Don’t rely only on:
- Smell
- Appearance
- Taste
- Texture
Food can sometimes contain harmful microorganisms without obvious signs of spoilage.
What If the Food Looks Fine?
This is a common situation.
You open the refrigerator and notice that a package is one day past its use by date. It smells normal and looks perfectly fine.
That does not necessarily mean it is safe.
Some foodborne pathogens cannot be detected through normal sight or smell. For foods carrying a use by date, the printed date and storage instructions should therefore be taken seriously.
What Does “Use By” Mean on Meat?
On fresh meat, a use by date is particularly important.
Meat can support the growth of harmful bacteria if it is stored incorrectly or kept for too long.
If meat has a use by date, follow the package’s storage instructions carefully. Keep it refrigerated at the recommended temperature and use it by the stated date.
If you are not going to use it in time, freezing it before the use by date may be an option, provided the packaging and local food-safety guidance allow for it.
Example
A package says:
Use by: September 28
If you plan to cook the meat on September 28, follow the package instructions and cook it properly.
If you realize on September 27 that you will not use it in time, you may be able to freeze it according to the package or local food-safety guidance.
What Does “Use By” Mean on Milk?
Milk labeling can vary by country and product.
Some milk products may carry a use by date, while others may use different labeling. Always check the specific package.
If milk has a use by date, treat that date as a food-safety instruction rather than simply a freshness suggestion.
Proper refrigeration also matters. A date printed on the package assumes the product has generally been stored according to the manufacturer’s instructions.
What Does “Use By” Mean on Eggs?
Egg labeling is another area where rules vary between countries.
Some eggs are marked with best-before dates, while local regulations may provide additional guidance on handling and storage.
If your eggs have a use by date, follow the instructions on the package. Don’t assume that cooking automatically makes any expired food safe.
For eggs and other foods, storage conditions, handling, and local food-safety rules all matter.
Why Storage Instructions Matter
A use by date does not exist in isolation.
Food manufacturers establish dates based on expected storage conditions. If a food has been left somewhere warm when it should have been refrigerated, its safety may be affected before the printed date.
Look for instructions such as:
- Keep refrigerated
- Keep frozen
- Store below a specified temperature
- Use within X days of opening
- Once opened, consume within X days
These instructions can be just as important as the date itself.
Before You Eat It, Check:
- What type of date is printed?
- Has the package been stored correctly?
- Has it been opened?
- Does the label provide additional instructions?
- Is the food within the stated use-by period?
When in doubt about a potentially unsafe food, it is better to follow authoritative food-safety advice rather than rely on appearance or smell.
What Does “Use Within X Days of Opening” Mean?
This wording is easy to overlook.
A package might say something like:
“Once opened, use within 3 days.”
That instruction can change how long you should keep the product after opening.
For example, a product may have a printed date several weeks away, but the manufacturer may instruct you to consume it within a shorter period once opened.
Always read the entire label rather than looking at only the large date printed on the front.
Use By Date Examples in Everyday Life
Here are a few realistic examples.
Example 1: Fresh Chicken
Label: Use by October 5
You keep the chicken refrigerated according to the package instructions and plan to cook it on October 5.
The use-by date is telling you when it should be used, assuming proper storage.
Example 2: Ready-to-Eat Salad
Label: Use by October 10
You find the salad in your refrigerator on October 11.
Even if it looks fresh, the fact that it has passed its use by date means you should not simply judge its safety by appearance.
Example 3: Biscuits With a Best-Before Date
Label: Best before October 10
You find the unopened package on October 12.
This is different from a use-by date because best before generally relates to quality. Depending on the product and storage conditions, it may still be usable.
Common Mistakes About Use By Dates
People often misunderstand food dates in several ways.
Mistake 1: Treating Every Date as the Same
Use by, best before, sell by, and display until can have different meanings.
Don’t automatically treat them as interchangeable.
Mistake 2: Smelling Food to Decide if It Is Safe
A normal smell does not prove that food is free from harmful bacteria.
Smell and appearance can help identify obvious spoilage, but they cannot guarantee safety.
Mistake 3: Ignoring Storage Instructions
A product that requires refrigeration should not be treated as though it were shelf-stable.
Follow the package’s storage directions.
Mistake 4: Assuming Cooking Fixes Everything
Cooking can destroy many harmful microorganisms when done correctly, but it should not be used as a general solution for eating food that is past its safety date.
Mistake 5: Confusing “Use By” With “Best Before”
This is probably the biggest misunderstanding.
A best-before date generally relates to quality.
A use-by date is more closely associated with safety.
Does a Use By Date Include the Date Printed?
In many food-labeling systems, a use-by date indicates the final date associated with the product’s safe-use period under the stated storage conditions.
However, food-labeling rules differ between countries. For that reason, always follow the wording on the package and your local food-safety guidance.
If the label provides a specific instruction about the date or time, follow that instruction.
Can You Freeze Food Before the Use By Date?
In many cases, perishable foods can be frozen before their use-by date, but the correct procedure depends on the product.
Check the package for freezing instructions.
A useful habit is to plan ahead. If you know you will not eat a perishable food before its use-by date, check whether the manufacturer recommends freezing it.
After freezing, follow safe thawing and cooking instructions.
What Happens if You Open Food Before the Use By Date?
Opening a package can introduce additional handling and storage considerations.
The manufacturer may provide a separate instruction such as:
“Once opened, refrigerate and consume within 2 days.”
If that instruction exists, follow it even if the printed use-by date is later.
This is why checking the complete label matters.
How to Read Food Dates Correctly
When you pick up a food package, don’t look at the numbers alone.
Follow this quick process:
- Find the date label.
- Identify the wording: use by, best before, or another term.
- Read the storage instructions.
- Check whether the package has been opened.
- Look for a separate “use within” instruction.
- Consider how the food has been handled and stored.
- Follow local food-safety guidance when uncertain.
This takes only a few seconds and can prevent a lot of confusion.
Why Food Date Labels Matter
Food date labels are designed to communicate useful information about a product’s expected safety or quality.
They can also help households manage food more effectively.
The important thing is to understand what the particular label means instead of treating every date as an automatic sign that food is either perfectly safe or immediately spoiled.
A little label-reading knowledge goes a long way.
Related Food Terms You Should Know
If you’re learning about use by date meaning, these related terms are worth knowing:
Best Before
A date generally associated with quality, such as taste, texture, or freshness.
Sell By
A date primarily intended to help retailers manage stock and sales.
Display Until
A retail-management instruction used to help stores organize products.
Expiration Date
A broad term people commonly use for product dates. Its exact legal meaning varies depending on the product and country.
Perishable Food
Food that can spoil or become unsafe relatively quickly and often requires refrigeration.
FAQs:
What is the simple meaning of use by date?
A use by date indicates the period during which a food is expected to be safe to eat when stored according to the package instructions. It is mainly a food-safety label, unlike a best-before date, which generally focuses on quality.
Is use by the same as best before?
No. Use by is generally associated with food safety, while best before is generally associated with quality. Food carrying a use-by date should be treated more cautiously after the stated date.
Can you eat food on its use by date?
Generally, food can be used on the stated use-by date when it has been stored correctly and the package does not provide a different instruction. Follow the label and local food-safety guidance.
Can you eat food one day after the use by date?
For foods carrying a use-by date, you should not assume that they are safe to eat after the date simply because they look or smell normal. Follow food-safety guidance rather than relying on sensory checks alone.
Does use by mean the food goes bad at midnight?
A use-by date should not be interpreted as a magical moment when food suddenly changes from safe to unsafe. It represents a food-safety limit established under specified conditions. Follow the package instructions and applicable local guidance.
What is the difference between expiration date and use by date?
“Expiration date” is a broad phrase that can have different meanings depending on the product and country. “Use by” is a specific type of food date generally associated with safety.
Can I freeze food before the use by date?
Some foods can be frozen before their use-by date. Check the package for freezing instructions and follow safe freezing, thawing, and cooking practices.
Should I trust smell after the use by date?
No. Smell and appearance cannot reliably tell you whether food contains harmful microorganisms. For foods with a use-by date, follow the date and appropriate food-safety guidance.
Final Thoughts:
The simple use by date meaning is about food safety. It tells you when a perishable food should be used when it has been stored correctly, rather than simply telling you when the product will stop tasting its best.
The biggest thing to remember is the difference between use by and best before. Read the complete label, follow storage instructions, and don’t rely only on smell or appearance when deciding whether a potentially risky food is safe.
Have a food-label question or a confusing date on a package? Share your example in the comments!
Hi, I’m Musaghumman, the mind behind EasyWordMeaning. I turn confusing words into easy meanings so anyone can learn, understand, and use English with confidence.
