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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
past expiration date
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "past expiration date" is correct and usable in written English. You can use it when referring to items, especially food or medications, that are no longer valid or safe to use after a specified date. An example: "The milk is past expiration date and should not be consumed." Alternative expressions include "expired" and "beyond the expiration date."
✓ Grammatically correct
News & Media
Science
Alternative expressions(7)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
I used my thumb to cover over a long-past expiration date, slipped into the shorter line, and rebooked.
News & Media
As the past few years have hinted at, and last week made crystal clear, evangelicalism is an old wineskin that is long past its expiration date.
News & Media
ISTANBUL — Is Turkey's prime minister past his expiration date?
News & Media
Even organic food becomes unhealthy when it is sold past its expiration date.
News & Media
It depends on how long past the expiration date it is".
News & Media
But soda past its expiration date goes flat and loses much of its taste.
News & Media
Many students said the milk was served lukewarm and past its expiration date.
News & Media
But this is a tired idea that seems to have been kept past its expiration date.
News & Media
It's an adult-contemporary album about mature relationships, most well past their expiration date.
News & Media
(Though once he reports the enlivening addition of Army rations five years past their expiration date).
News & Media
The present name is obsolete, misleading and harmful — long past its expiration date.
News & Media
Expert writing Tips
Best practice
When discussing food safety, use "past expiration date" to clearly communicate the potential risks of consuming products after their recommended date.
Common error
Don't assume that "best by" and "expiration" dates mean the same thing. "Best by" dates indicate quality, while "expiration" dates often relate to safety. Products "past expiration date" should be discarded to avoid potential health risks.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "past expiration date" functions as an adjectival modifier, typically describing a noun (e.g., food, medication) that has exceeded its recommended usage period. Ludwig confirms that it indicates something is no longer valid or safe for use.
Frequent in
News & Media
40%
Science
30%
Formal & Business
10%
Less common in
Encyclopedias
5%
Wiki
5%
Social Media
5%
Ludwig's WRAP-UP
The phrase "past expiration date" is a grammatically sound and commonly understood way to describe items that have exceeded their recommended usage period. Though Ludwig shows limited examples, its meaning is clear: to signal a potential decline in quality or safety, according to Ludwig. Usage is especially relevant in contexts concerning food and medicine, where safety is paramount. Related terms like "expired", "outdated" and "beyond its use-by date" offer alternative ways to express this concept. When writing, it's important to distinguish between "best by" and "expiration" dates to accurately convey the product's condition. Remember to use the phrase "past expiration date" to promote safety and quality awareness.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
expired
A shorter, more direct way to indicate that something is no longer valid.
beyond its use-by date
Emphasizes the date beyond which the item should not be used.
outdated
A general term for something that is no longer current or valid.
gone bad
Specifically refers to food items that have spoiled.
reached its sell-by date
Focuses on the date by which a product should be sold, implying it may still be usable for a short time after.
no longer usable
A broad term indicating something is not fit for its intended purpose.
after the due date
Highlights that a deadline or validity period has passed.
invalid
Indicates that something is no longer officially recognized or accepted.
time-expired
Another way to express the idea that something has passed its expiration time
superannuated
A more formal term for something that is obsolete due to age or time.
FAQs
What does "past expiration date" mean?
It means that a product has exceeded the date recommended by the manufacturer for optimal quality or safety and may no longer be safe or effective to use.
What can I say instead of "past expiration date"?
You can use alternatives like "expired", "outdated", or "beyond its use-by date" depending on the context.
Is it safe to use products "past expiration date"?
It depends on the product. For food and medicine, it's generally best to err on the side of caution and discard items "past expiration date". For other items, like some cosmetics, it may be safe to use them, but their quality might have deteriorated.
How do I properly dispose of items "past expiration date"?
Check the product label for specific disposal instructions. Some medications, for example, should be taken to a drug take-back program to prevent misuse or environmental contamination.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested