Industrial hemp hearts are a valuable food product, rich in protein, polyunsaturated omega-3 and omega-6 fatty acids, vitamins, and minerals. Proper storage of these delicate seeds helps preserve their nutritional value and prevent the oils from going rancid.
Characteristics of Edible Hemp Hearts
Hemp hearts are soft kernels with a nutty flavor reminiscent of pine nuts. Unlike whole seeds intended for sprouting, edible hearts are fully cleaned of the outer hull and ready to eat raw.
Composition of hemp hearts:
- Protein: 25–30 g per 100 g of product
- Fat: 25–30 g (predominantly omega-3 and omega-6)
- Carbohydrates: 13–14 g
- Calories: 429–553 kcal per 100 g
Optimal Storage Conditions
Temperature Range
The ideal temperature for storing hemp hearts is between +4 and +18 °C. The product is best kept in the refrigerator, in the vegetable drawer, where a stable cool temperature is maintained.
Key principles:
- Avoid sudden temperature fluctuations
- Do not store the seeds near heat sources
- At room temperature, shelf life is significantly reduced
Humidity Control
Hemp hearts are especially sensitive to humidity because of their high oil content. The optimal relative humidity for storage is no more than 75%.
Signs of excess humidity:
- A musty odor
- Softening of the hearts
- Mold growth
- Clumping of the seeds
Protection from Light and Air
Hemp hearts should be stored in a dark place in airtight packaging. Exposure to light and oxygen leads to oxidation of the beneficial fats and loss of nutritional properties.
Choosing the Right Storage Container
Glass Jars
Advantages:
- Airtight seal when closed tightly
- No transfer of foreign odors
- Ability to monitor the condition of the product
- Eco-friendly
Usage recommendations:
- Choose dark-glass jars or store them in a dark place
- Ensure the lid fits tightly
- Fill the jar as full as possible to minimize contact with air
Ceramic Containers
Ceramic containers with tight-fitting lids are also well suited for storing hemp hearts. They provide protection from light and maintain a stable temperature.
Original Packaging
If the hearts were purchased in quality factory packaging, it is recommended to keep them in it until opened. After opening, the product should be transferred to an airtight container.
Additional Protective Measures
Desiccants
To control humidity, you can use:
- Silica gel — the most effective option
- Rice packets — a natural alternative
Place small desiccant packets in the container with the seeds, but do not allow them to come into direct contact with the product.
Vacuum Packaging
For long-term storage, you can use vacuum bags, which completely eliminate contact with oxygen and slow down oxidation processes.
Shelf Life of Hemp Hearts
The recommended shelf life is up to 12–18 months when proper conditions are maintained.
Factors affecting shelf life:
- Quality of the original packaging
- Transport and storage conditions at the supplier
- Degree of hull removal
- Ambient humidity
Signs of a Spoiled Product
Hemp hearts should be discarded if you notice:
- A rancid or musty odor
- A change in color (darkening, appearance of spots)
- A moldy coating
- A slimy consistency
- An unpleasant bitter taste (beyond the usual slight bitterness)
Effect of Heat Treatment
It is important to remember that hemp hearts are best consumed raw. Heat treatment at high temperatures destroys most of the beneficial components, especially the polyunsaturated fatty acids.
Consumption recommendations:
- Add to prepared dishes after they have cooled
- Use in cold salads, smoothies, and yogurts
- If heat treatment is necessary, do not exceed 60 °C
Practical Storage Tips
Step-by-step instructions:
- 1. Check the quality — make sure there are no foreign odors or visible defects
- 2. Choose a suitable container — a glass jar or a ceramic container with a tight lid
- 3. Add a desiccant — a small packet of silica gel or rice
- 4. Fill the container as full as possible to minimize contact with air
- 5. Place it in the refrigerator — in the vegetable drawer or on a shelf
- 6. Label the date — to track shelf life
Common Mistakes
Avoid the following mistakes:
- Storing in plastic bags without additional protection
- Placing near sources of heat and moisture
- Frequently opening the container without need
- Storing in transparent containers exposed to light
- Mixing fresh hearts with already-opened ones
Conclusion
Proper storage of industrial hemp hearts requires following several key principles: maintaining a cool temperature (between +4 and +18 °C), protection from light and moisture, and the use of airtight containers. When these conditions are met, edible hemp seeds will retain their nutritional value and nutty flavor for 12–18 months. Remember that hemp hearts are best consumed raw, added to cooled, prepared dishes to maximize the preservation of the beneficial omega acids and vitamins.
This is what we make
We make all of this ourselves — a full-cycle plant in the Uzlovaya SEZ, 0% THC.
Hulled hemp hearts (separated)
Protein over 30% · omega-3/6
Cold-pressed green hemp seed oil
Omega-6 : omega-3 = 3.5 : 1
Hemp protein flour
Protein 40–45 g/100 g
We’ll match a product to your production need and send samples with documents.