
Many wonder "can spices be stored in Mylar bags?" and "how long will spices last in Mylar bags?"
Yes, spices can be stored in Mylar bags, and when sealed properly with oxygen absorbers and kept in a cool, dark, dry place, they can last 5 to 25+ years. Whole spices usually last longer than ground spices, though both may slowly lose some aroma and flavor over time.
One of the best methods for the long-term preservation of spices is in Mylar bags; they are easy to use, maintain a dry condition (i.e., cannot be spoiled), and will last indefinitely. However, while spices may not spoil quickly, they will eventually lose their potency due to time passing (i.e., their scent deteriorates, loss of taste, and ultimately become colored powder). The use of Mylar bags will help prevent this from happening to the spices you are storing.
Short Overview
You can store spices in Mylar bags, and they can stay usable for 5 to 25+ years when heat sealed with oxygen absorbers and kept in a cool, dark, dry place. Mylar helps protect spices from air, moisture, and light, though some flavor and aroma may slowly fade over time.
Can I Store Spices in Mylar Bags?
Yes, spices can be stored in Mylar bags, and they are one of the best options for long-term storage because they protect against oxygen, moisture, and light.
Mylar bags have been engineered to protect dry products from the three main threats to food storage:
• Air.
• Water.
• Light.
These same three components are responsible for the decline of the spices you are trying to preserve. Many spices will begin to lose their oil and fragrance as soon as they are exposed to air and moisture. When you create a tight seal with a Mylar bag, you will prevent spices from coming into contact with air and moisture faster than using many of the thin, flimsy plastic spice containers or pouches.
How Long Can Spices Be Stored in Mylar Bags?
Spices can last 5 to 25+ years in Mylar bags when sealed with oxygen absorbers and stored in a cool, dark, dry place, though some flavor and aroma will gradually fade over time.
General Overview:
- Whole spices can often last the longest
- Ground spices usually lose potency faster
- Dried herbs and seasoning blends may fade sooner than dense whole spices
Spices can have long lives but will not taste fresh forever. Over time, they will lose some of their flavors and aromas but the rate will be much more gradual if you use Mylar to slow down this degradation.
What Makes Mylar Work So Well with Spices
Spices have oils and compounds in them that give them their flavor and aroma. These same oils and compounds are degraded by exposure to oxygen, moisture, light and heat.
Thus, Mylar will help with:
- Oxygen barrier better than standard type of packaging
- Minimize moisture exposure
- Keep light away from the contents
- Lock in the remaining freshness through heat sealing
The best way to create the best long term food storage environment for spices is to use Mylar bags and add oxygen absorbers.
How to Store Spices in Mylar Bags
If you want to have the longest life possible for your spices, follow these simple tips of proper storage:
- Use only high quality Mylar bags.
- Choose the correct size for the type of oxygen absorber.
- Seal the bag securely using a heat source.
- Keep the sealed bags in a cool, dark cupboard or storage area.
- Don't open and reseal the bags frequently.
- Use smaller portions when possible as this will result in less air leftover in each bag.
It is also a good idea to label each bag with the spice's name and date stored. This will allow you to keep track of what you put in the bag and when you put it in.

Why Spice Brands Use Custom Printed Mylar Packaging
Custom printed Mylar packaging bags are popular among spice companies as they do not provide an opportunity to present their products to customers, but also support the preservation of freshness, enhance display, and project a professional impression to the consumer.
Spicy seasonings are very sensitive to moisture, air, light, and odor transmission; therefore, the type of packaging used can have a significant impact. Mylar bags incorporate a strong barrier that helps to extend the shelf life of your products with respect to smell, color and flavor up to 12 months longer than other types of packaging. This makes them suitable for everything from single ingredient seasonings to gourmet spice blends.
The advantage of custom-printed Mylar packaging bags is that they provide an opportunity for spice brands to differentiate themselves in a competitive marketplace using custom-designed, professionally printed pouches that communicate important information about the product, such as:
- Flavour Name
- Ingredient List
- Heat Level
- Brand Colour and Logo
- Nutrition Facts
- Cooking Instructions (or recommendations)
- Required/Recommended Retail Labelling Compliance
When presented with a product for the first time, the consumer's eye usually focuses on the packaging. The exceptional design of the product will catch the consumer's attention at grocery stores, online, and/or through subscription box services.
Custom printed Mylar packaging bags also feature a variety of options that are attractive to spice brands including:
- Resealable zipper
- Tear notches
- Hang holes
- Matte vs Glossy coatings
- Clear window
- Stand up pouch
In summary, the custom printed Mylar bag provides a combination of product protection, branding and convenience all-in-one. The combination of these attributes will help to maximize the sale of your products while providing a longer shelf life for your spices.
Final Remarks
Yes, spices can be stored in Mylar bags, and they can last 5 to 25+ years when properly sealed with oxygen absorbers and stored in a cool, dark, dry place. Mylar bags help protect spices from oxygen, moisture, and light, which helps preserve their freshness much longer than standard packaging.
Mylar bags are one of the best ways to provide better long term food storage, preserve spices you buy in bulk, and limit the amount of air that can get to your spices.
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