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Deciphering Product Expiry Dates: A Comprehensive Guide

Megan Aug 11, 2026

Ever found yourself standing in the grocery aisle, squinting at the tiny print on a product label to decipher the expiry date? You're not alone. Reading product expiry dates can indeed be a challenge, but understanding how to do it correctly can save you from consuming expired or spoiled goods. Let's demystify this process.

Mary Kay Expiration Calculator, Mary Kay Expiration Codes, Mary Kay Fun Facts, Mary Kay Product Expiration And Shelf Life, Mary Kay Part Numbers, Mary Kay Expiration Date, Mary Kay Facts, Makeup Expiration Chart, Mary Kay Information
Mary Kay Expiration Calculator, Mary Kay Expiration Codes, Mary Kay Fun Facts, Mary Kay Product Expiration And Shelf Life, Mary Kay Part Numbers, Mary Kay Expiration Date, Mary Kay Facts, Makeup Expiration Chart, Mary Kay Information

Expiry dates ensure food safety and maintain product quality. It's crucial to understand how to read them accurately. Manufacturers use various formats to denote expiry dates, making it essential to familiarize yourself with these, so let's dive into the most common formats and how to read them.

How to Check the Ordinary Products Expiry Date
How to Check the Ordinary Products Expiry Date

Common Expiry Date Formats

The first step in reading expiry dates is recognizing the format used. Three common formats are used widely:

MAKE UP EXPIRATION GUIDE
MAKE UP EXPIRATION GUIDE

1. MM/DD/YYYY or DD/MM/YYYY: These formats use a slash separating day, month, and year, with the day and month represented by double digits. The year can be either two or four digits long.

Understanding Month and Day Abbreviations

How To Find Skincare Expiry Date
How To Find Skincare Expiry Date

Sometimes, you might encounter abbreviations like 'Jan' for January, 'Feb' for February, etc. Knowing these can help you read dates accurately. Additionally, single-digit days and months should be read as they appear, i.e., '1' is read as 'one' not 'eleven'.

For instance, '06/02/21' should be read as 'June 2, 2021', and '02/01/22' as 'February 1, 2022'.

Dealing with Two-Digit Years

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How To Read An Expiration Date Code, How To Get Expired Codes In Dti, Expiration Date Symbols, Coded Expiration Dates, Food Safety Expiration Dates, Understanding Food Expiration Dates, Canned Food Expiration Dates, Food Expiration Dates Explained, Date Codes

Dates like '05/12/17' can be confusing because the year is not immediately apparent. The year here is 2017 unless specifically denoted otherwise. To avoid confusion, always look for further clarification on the label, usually below the date.

For example, you might see something like 'MM/DD/YY - 2017' or 'MM/DD/YY -Expired on 31/12/2019', which clearly indicates the year.

Best Before or Use By Dates

an info sheet with different types of food and drinks in each section, including the words'how long can you keep almost anything? '
an info sheet with different types of food and drinks in each section, including the words'how long can you keep almost anything? '

You might also encounter 'Best Before' or 'Use By' dates. Both indicate a quality and freshness guarantee, but they are not the same:

'Best Before' dates indicate when the product's quality starts to diminish. It doesn't necessarily mean the product is spoiled or unsafe to consume, but it might not taste as fresh.

Debunking Expiration Dates – What You Need to Know
Debunking Expiration Dates – What You Need to Know
The Trick to Knowing Exactly When Your Makeup Expires
The Trick to Knowing Exactly When Your Makeup Expires
Ask the expert: help! How can I read the expiry date of the product?
Ask the expert: help! How can I read the expiry date of the product?
How To: Use The Expiry Dates Feature (Premium)
How To: Use The Expiry Dates Feature (Premium)
Ask Unni: How to Read Dates on Beauty Products
Ask Unni: How to Read Dates on Beauty Products
How Long You Can Keep Your Food Past Its Expiration Date
How Long You Can Keep Your Food Past Its Expiration Date
How to Find Skincare Expiry Date
How to Find Skincare Expiry Date
Science of Skincare Products - Safety and Product Expiry Date - Eczema Blues
Science of Skincare Products - Safety and Product Expiry Date - Eczema Blues
Does Makeup Expire? How to Check Makeup Expiration Dates
Does Makeup Expire? How to Check Makeup Expiration Dates

'Use By' dates, on the other hand, indicate the product's safety. After this date, there's a risk the product might be unsafe to consume.

Reading 'Best Before' and 'Use By'

These dates are usually presented in a similar format to regular expiry dates, i.e., MM/DD/YYYY or DD/MM/YYY. Ensure you follow the same reading rules as before to read them accurately.

For instance, 'Best Before 05/08/23' means the product's quality may start to decline after August 5, 2023, while 'Use By 10/12/22' means it might not be safe to consume after December 10, 2022.

Reading expiry dates correctly is crucial for your health and safety. Always check the date first before purchasing or consuming any product. If in doubt, it's generally safer to err on the side of caution and opt for a newer or fresher product.

Happy shopping, and may your cart always remain filled with fresh, safe, and quality products!