What is a shelf life label? (and what food sellers should check)

What it is

Shelf life is how long a product stays good to eat when stored properly. A shelf life label puts that information on the pack, usually as a date or a period, so the buyer knows when to finish it. You will see wording like best before or use by, and they can mean slightly different things.

This post explains the idea in plain language. It does not state any labelling rule, because requirements for food products are set by the authorities and can change. Please check the current rules with the official food regulator or a qualified consultant before you sell packaged food.

Best before versus use by

In general terms:

• Best before usually points to quality. After the date the food may not taste or feel as good, though it may still be safe if stored well.
• Use by usually points to safety. Food should not be eaten after it.

Which wording and which dates apply to your product, and how to show them, is something to confirm officially.

A snack example

Say you make roasted banana chips at home. You fry a batch on Sunday, cool the chips fully, and seal them in airtight pouches. How long do they stay crisp and good? You cannot just guess.

What a careful seller does:

• Records the date the batch was made.
• Stores a few sample packs in normal home conditions and checks them over days and weeks for smell, taste and crispness.
• Notes the first sign of change, such as softening or an off smell.
• Chooses a shelf life that is clearly shorter than the point where trouble began, to leave a margin.

That test is a starting point, not a certificate. For some foods, especially ones with moisture, you may need advice from a food professional or a lab.

What affects shelf life

• Moisture: a pack that lets in humidity makes crisp food soft.
• Air: oils can turn stale with exposure.
• Heat and light: warm, bright storage speeds up change.
• Handling: clean tools and dry hands matter at packing time.
• The packaging: a good seal can make a big difference, see packing sweets and snacks to avoid crushing and packing pickles and oils to avoid leaks.

What food sellers should check

• Which dates and details need to appear on a pack for your product type, and in what format.
• Whether you need any registration or licence to sell it, from the official source.
• How to state storage instructions, like "store in a cool, dry place."
• What to do when a customer receives a product close to its date.

Be clear with buyers

On your product page, give storage advice and tell buyers when the batch was made or how long they can expect it to last, in honest words. Do not say a food is fresh for a period you have not tested. The wider habits are covered in how to start selling homemade food online in India and return policy for food and hygiene products.

Rotate your stock

Sell older stock first. A simple rule: put new packs at the back and older packs at the front, and mark the batch on a sticker or in a notebook. That links to what a batch number is.

Where to start

Pick one product, write down its test notes honestly and ask the official source or a professional what your label needs. Then design the label with that answer in hand.