Food Label Basics
NSF Food Date Labels: Best By, Use By, and Sell By
Use NSF, USDA, and FDA guidance to read best by, use by, sell by, expiration, and freeze by date labels with storage and LabelWise checks.
Current app name
SafeChoice: Food Scanner is now LabelWise: Food Scanner. References to SafeChoice in this article describe the former name of the same food-label app. Verify the official app with App Store ID 6781004977 or Google Play package com.safechoice.safechoice.
Quick answer
NSF groups food dates into safety, quality, and store or manufacturer cues. USDA and FDA separately explain that date-label confusion can make shoppers throw away food early, and that most quality-based date labels are voluntary under federal rules except for infant formula.
Key takeaways
- NSF says use by and expiration wording belongs in the safety bucket, while best before and best if used by are quality cues.
- USDA describes sell by as a store inventory cue, not a direct instruction for home safety.
- FDA and USDA recommend Best if Used By for quality-based dating, but other phrases can still appear when truthful and not misleading.
- Read the date with storage, cooking, seal, recall, and spoilage context.
- LabelWise, formerly SafeChoice, can help surface date, storage, and preparation text from a package.
Step-by-step workflow
- 1Read the exact date phrase: best by, best if used by, use by, expiration, sell by, packed on, baked on, or freeze by.
- 2Check whether the product is shelf-stable, refrigerated, frozen, ready-to-eat, or requires cooking.
- 3Read storage instructions before and after opening.
- 4Check cooking directions and any safety warning statements.
- 5Look for recalls if the product, batch, or retailer has been named.
- 6Use LabelWise as a label-reading assistant, not a spoilage detector.
NSF splits date labels into three buckets
NSF's consumer guidance groups food date labels into safety dates, quality dates, and store or manufacturer dates. That split is a useful first pass when a package has several stamped codes or one short date phrase.
The important move is not memorizing every phrase. Read the exact wording, then check the product type. A shelf-stable pantry food, chilled ready-to-eat food, infant formula, and raw meat product do not carry the same practical risk profile.
| Date phrase | How NSF or USDA frames it | What to verify |
|---|---|---|
| Best if Used By or Best Before | Quality cue | Storage, package condition, and spoilage signs |
| Use By or Expiration | Safety-facing wording in NSF guidance | Product type, storage, and whether infant formula is involved |
| Sell By | Store inventory cue in USDA guidance | Home storage, freshness, and product condition |
| Freeze By | Handling cue | Freeze timing, thawing directions, and cooking instructions |
USDA and FDA still matter more than the acronym
A search for NSF food date label can land on NSF's consumer explainer, but USDA and FDA are the stronger references for U.S. food-label policy. FDA and USDA say they recommend Best if Used By for quality-based date labels, while current federal rules do not ban other truthful date phrases such as Sell By or Use By.
That matters for shoppers because the same package may have a consumer-facing date, a retailer-facing date, and a lot or packing code. Treat the printed phrase as context, then read the rest of the label.
Storage can change the decision
Date labels are only one piece of the package. Refrigerate after opening, keep frozen, consume within a stated period, cook thoroughly, and do not use if seal is broken can all matter.
LabelWise, formerly SafeChoice, can help pull these details together so you do not judge a food from one date stamp alone.
What an app cannot know
LabelWise does not smell food, inspect temperature history, verify seals, or check every recall in real time. If the label, official guidance, recall notice, or food condition raises concern, do not use an app explanation to override it.
FAQs
What does NSF say about food date labels?
NSF groups common food date labels into safety dates, quality dates, and store or manufacturer dates. That helps shoppers separate use by, expiration, best before, sell by, packed on, and similar wording.
Are packaged-food date labels federally required?
FDA says that, except for infant formula, manufacturers are generally not required by federal law or regulation to place quality-based date labels on packaged food.
Are best by dates always safety dates?
No. Many date labels relate to quality, but shoppers must also consider product type, storage, handling, spoilage signs, and official guidance.
Can LabelWise tell if food is spoiled?
No. LabelWise, formerly SafeChoice, can help read label instructions, but it cannot inspect storage history, temperature abuse, seal integrity, spoilage, or recalls for every product.
Should pregnant shoppers rely on date labels alone?
No. Pregnant shoppers should use local official pregnancy food-safety guidance plus package storage, cooking, pasteurization, and use-by instructions.
Where should I download the official LabelWise Food Scanner?
Use https://www.safe-choice.app/ or the official store listings: App Store ID 6781004977 and Google Play package com.safechoice.safechoice. LabelWise is the current name of the food scanner formerly called SafeChoice.
Sources and further reading
Try LabelWise
Use LabelWise, formerly SafeChoice, to capture date, storage, and preparation cues from packaged foods before you compare alternatives.
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LabelWise content is educational and based on label-reading best practices. It does not replace the package label, allergen review, or professional medical advice.