How to Store Hemp Seeds, Protein & Hemp Seed Oil
A little fridge space goes a long way
Keep your hemp cool.
Hemp seed oil, hulled seeds and protein powder all come from the same clever plant. But they have different storage personalities. Here is how to keep them fresh, understand their dates and avoid a forgotten-bottle mystery.
Hemp seed oil
The delicate oneProtect from heat, light and air. Refrigeration after opening is recommended for best freshness.
Our label guide: best used within 90 days of opening.
Hulled hemp seeds
The oil-rich little heartsThose lovely seeds still contain their natural oils. Keep them tightly sealed; we recommend the fridge for maximum freshness, particularly after opening.
Hemp protein
The more easygoing oneGenerally more forgiving because much of the oil has been pressed out. Keep sealed, cool and dry. We refrigerate ours for maximum freshness too.
Our favourite storage upgrade
Make a little room in the fridge.
At Made In Hemp, we keep our hemp foods refrigerated for maximum freshness. It is a useful habit to continue at home, especially for opened oil and hulled seeds.
A cool cupboard is very different from a shelf beside the oven or a sunny kitchen bench. Australian kitchens can get warm, and delicate oils appreciate somewhere cooler.
Sealed.
Away from sunlight.
Simple habits for keeping the good stuff fresh.
Why the oils deserve a little extra attention
Hemp seed oil is rich in polyunsaturated fats, including omega-3 and omega-6 fatty acids. These oils are sensitive to oxidation: changes that happen through exposure to oxygen, with heat and light also playing a part.
Over time, oxidation can affect flavour and lead to rancidity. Keeping the product cool, limiting light exposure and closing the packaging properly helps protect its quality.
For everyday storage, give the bottled oil the most attention, followed by oil-rich hulled hemp seeds. Protein powder is generally more forgiving, but its remaining oils still benefit from good storage. The exact shelf life depends on the product, packaging and conditions.
The practical storage guide
Choose your ingredient. There is no complicated routine hiding inside.
Hemp seed oil: give this bottle the VIP treatment
Our storage instructions: store in a cool, dry place away from direct sunlight and heat. Once opened, reseal well. Refrigeration is recommended after opening for best freshness.
- Keep the bottle closed when you are not using it.
- Return it to the fridge after pouring.
- Avoid storing beside the stove, oven or sunny window.
- Keep the bottle opening clean and avoid introducing water or food into it.
- Write the opening date on the bottle so you do not have to rely on your memory.
Our 90-day guide: the label says “best used within 90 days of opening”. This is a freshness recommendation, rather than a claim that the oil changes overnight on day 91. Storage conditions matter throughout those 90 days too.
Follow both the printed date and the after-opening guidance. Opening a bottle does not reset its age or give an older product a fresh 90-day guarantee.
Enjoy hemp seed oil in dressings, dips, smoothies or drizzled over a finished meal. Keep it away from high-heat frying, and let it shine as a finishing oil.
Hulled hemp seeds: remember the oils inside
Hulled hemp seeds, also called hemp hearts, retain their natural oils. Their dry appearance does not mean they are indifferent to heat and air.
Our freshness recommendation: keep them refrigerated in a well-sealed pack or airtight food container, especially once opened.
- Reseal the bag properly after every use.
- If the closure stops sealing well, use a clean, dry, airtight food container.
- Use a clean, dry spoon.
- Keep away from steam, splashes and wet utensils.
- Retain the original best-before date and batch details if you transfer them to another container.
This is our extra storage advice for maximum freshness; we do not currently give a specific after-opening period on our seed labels. We would rather explain the storage habits than invent a universal countdown.
Hemp protein: more forgiving, still worth looking after
Hemp protein powder is made from the material remaining after oil pressing, with further processing used to produce the powder. It generally contains less oil than hulled seeds, making it a more storage-friendly member of the family.
“Almost bulletproof” is a personality description, though—not a shelf-life promise.
- Keep tightly sealed in a cool, dry place away from sunlight and heat.
- We also refrigerate ours for maximum freshness, particularly useful in a warm kitchen.
- If refrigerating, use a reliable airtight container or properly sealed pack to keep moisture out.
- Use a clean, completely dry scoop.
- Keep the open bag away from kettles, simmering pots and smoothie splashes.
The scoop has one job. Powder first, then the wet ingredients. A spoon that has visited your yoghurt should not take a return trip into the bag.
Protein powder still contains some fat and can deteriorate. Moisture, contamination and poor storage can also cause problems. Keep the printed date and any pack instructions with it.
Buying a larger quantity? Divide and conquer.
Choose a quantity you can store properly and use at a comfortable pace. A larger pack is only useful if you have somewhere suitable to keep it.
For seeds and protein, a small working container lets you keep the main supply sealed while you use your everyday portion. Make sure every container is food-safe, clean, completely dry and airtight.
For bulk oil, contact us about suitable dispensing and storage before buying. Repeatedly opening a large container, or keeping it somewhere warm, deserves a little planning.
Keep the product name, best-before date, batch information and opening date with each portion. Refilling a jar does not reset the date of its contents; avoid topping up old stock with a new batch.
Best before, use by & “expiry”: what is the difference?
Our hemp seed oil, hulled hemp seeds and hemp protein powder carry a best-before date. This is a guide to quality when stored correctly, rather than an automatic expiry deadline.
You will also see use-by dates on other foods. These relate to safety, so the distinction matters. Here is how to read the two.
Best before = quality
This indicates how long a food is expected to retain its quality when stored as directed.
Passing the date does not automatically make the food unsafe. It may still be suitable, but its flavour, texture or other qualities can decline.
Its condition, storage history and after-opening instructions still matter.
Use by = safety
Do not eat food after its use-by date, even if it looks or smells normal.
Smell and taste cannot reliably identify all food-safety hazards. A use-by date should not be treated as a flexible freshness suggestion.
Three things to read together: the printed date, the storage instructions and any guidance about using the product after opening.
A date is not a substitute for good storage. Food can deteriorate before its best-before date if its packaging is damaged or it has been stored poorly.
What does this mean for our oil’s 90-day guide?
“Best used within 90 days of opening” is our guide to enjoying the oil at its best after the seal has been opened. It is separate from the printed best-before date.
It is not an instruction to discard a well-stored bottle automatically on day 91, nor a guarantee that oil left beside a hot stove will stay fresh for 90 days.
Refrigerate after opening, reseal well and keep track of when you opened it. If you notice an unpleasant change in its usual aroma or flavour, stop using it.
If the bottle is old, its storage history is uncertain or you are unsure about its condition, ask us rather than treating the calendar alone as the answer.
How can I recognise a loss of freshness?
Get familiar with the aroma and flavour of a freshly opened product. Hemp foods have their own naturally nutty, earthy or grassy characteristics; protein powder can taste earthier than hulled seeds.
An unpleasant stale or rancid smell, or a distinctly harsh, changed flavour noticed during normal use, is a reason to stop using the product.
Also discard products showing mould, insects, unexpected dampness or evidence of contamination. Do not taste something that already looks or smells spoiled.
A freshness clue is not a safety test. Smell and flavour can reveal quality changes, including rancidity, but cannot prove a food is safe. Always respect use-by dates and relevant storage instructions.
Adding questionable oil or powder to a strongly flavoured smoothie will not restore it. If in doubt, leave it out and get advice.
Do I need to throw everything out on its best-before date?
No. A best-before date is about expected quality, rather than an automatic disposal deadline.
That does not mean every food beyond its best-before date is suitable to eat. Consider whether it has been stored correctly, how long it has been open, the condition of the packaging and any signs of deterioration.
There is no single extra number of days or months that we can safely promise for every pack. Refrigeration helps preserve freshness; it does not make a product last indefinitely.
For more on the distinction, see Food Standards Australia New Zealand’s explanation of food date labels.