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Mylar Bag 30*40cm (50 pcs)
Preserve your items from light, oxygen and moisture damage with Mylar Bags. Use with Oxygen Absorbers to successfully store your items for longer.
Key Features
- 110 micron (0.11 mm / 4.3 mil) barrier strength
- Protects contents from light, moisture and oxygen
- BPA-free and food-safe
- Pack of 50 Mylar Bags
- Resealable zip closure
- Tear notch for easy opening
- Heat-resistant up to 120°C
- Available in 15 × 20 cm, 23 × 32 cm or 30 × 40 cm
Check out our Bag and Absorber bundles to SAVE.
Description
Our Mylar Bags are purpose-built for long-term storage, offering protection from light, moisture and oxygen. Suitable for food and non-food items, they are durable, resealable and ideal for use with oxygen absorbers to extend shelf life.
Key Features
- 110 micron (0.11 mm / 4.3 mil) barrier strength
- Protects contents from light, moisture and oxygen
- BPA-free and food-safe
- Pack of 50 Mylar Bags
- Resealable zip closure
- Tear notch for easy opening
- Heat-resistant up to 120°C
- Available in 15 × 20 cm, 23 × 32 cm or 30 × 40 cm
Ideal for storing dry foods such as flour, oats, jerky, noodles, rice and coffee. Also suitable for non-food items including documents, jewellery, photographs and spare parts.
Why Use Mylar Bags
- Strong and tear-resistant
- Flexible and collapsible as oxygen is removed
- Non-porous barrier for extended shelf life
- Cost-effective for home or commercial use
Pair with Oxygen Absorbers
- Add absorbers before sealing to prevent spoilage.
- Absorbers remove the oxygen portion of air (approx. 20%).
- Bags may deflate slightly — this is normal.
- A vacuum sealer is required for a true vacuum finish.
- Use our online calculator to choose the correct absorber size.
How to Seal Mylar Bags
- Fill the bag, leaving 10–12 cm at the top.
- Add oxygen absorbers.
- Press out excess air.
- Seal using one of the following methods:
- Vacuum Sealer: Use the sealing function; vacuuming is optional when using absorbers.
- Impulse Sealer: Fast, efficient sealing option.
- Hair Straightener / Iron: Use highest heat, seal for 2–4 seconds, then repeat if needed.
Note: Heat sealing traps air. Oxygen absorbers remove only the oxygen portion. A vacuum sealer is required for complete air removal.
What Can Be Stored
Best suited for long-term storage of dry, low-fat foods:
- Flour, rice, grains and pasta
- Dehydrated fruits and vegetables
- Dried beans, cereals and powdered milk
- Herbs, spices and baking ingredients
High-moisture or high-fat foods should be rotated more frequently. Refer to our Mylar Storage Guide for recommended storage times.
Additional information
| Weight | N/A |
|---|---|
| Dimensions | N/A |
| Attribute | Details |
| Bag Dimensions | 30 cm × 40 cm |
| Thickness | 110 micron (0.11 mm) / 4.3 mil |
| Material | BPA-free food-grade Mylar |
| Seal Type | Resealable zip closure with tear notch |
| Heat Resistance | Up to 120°C |
| Barrier Protection | Light, oxygen, and moisture resistant |
| Capacity | 10.5 L (10500 cc) |
| Pack Size Options | 1 pack, 2 packs, or 4 packs (50 bags per pack) |
| Oxygen Absorber Compatible | Yes |
| Common Uses | Bulk food, large meals, long-term storage |
| Size | 1 Packet (50 pcs), 2 Packets (100 pcs), 10 Packets – 500 pcs |
| 5 star | 100% | |
| 4 star | 0% | |
| 3 star | 0% | |
| 2 star | 0% | |
| 1 star | 0% |
How do I seal a 30×40cm Mylar Bag?
You can seal a 30×40cm Mylar Bag using an impulse sealer, vacuum sealer (seal mode), or a high-heat household iron or hair straightener.
What types of food can I store in a 30×40cm Mylar Bag?
Dry foods such as flour, oats, rice, grains, pasta, beans, powdered milk, herbs, and dehydrated fruits or vegetables are ideal for a 30×40cm Mylar Bag.
How long will food last in a 30×40cm Mylar Bag?
When paired with the right oxygen absorbers, food in a 30×40cm Mylar Bag can last 5–20 years, depending on food type and storage conditions.
What is a 30×40cm Mylar Bag used for?
A 30×40cm Mylar Bag is used for storing larger volumes of food or bulk non-food items, offering excellent protection from oxygen, moisture, and light.
How many oxygen absorbers will I need for a 30×40cm Mylar Bag?
The number of oxygen absorbers required for a 30×40cm Mylar Bag depends on the
void volume
of your package: • The volume of the sealed package • The volume occupied by the food product. The calculation isolates the packaging void (sealed package volume minus food weight) multiplied by 20% — as air is approximately 20% oxygen. Formula lovers can use the calculation directly, but for a shortcut, try our online Oxygen Absorber Calculator to instantly determine the right amount.
Are 30×40cm Mylar Bags reusable?
Yes. A 30×40cm Mylar Bag can be reused when opened carefully and resealed, but fresh oxygen absorbers must be added each time.
Can I store liquids in a 30×40cm Mylar Bag?
A 30×40cm Mylar Bag can hold hot liquids up to 120°C temporarily but is not suitable for long-term liquid storage.
Wonderful. Thanks
Hi Chelsie,
Thank you for the review, we’re glad to hear you are happy with the product.
Kind regards
The Pro-Ex Team
Great product, good price & fast delivery
Hi Patrice,
Thank you for taking the time to leave a review, we agree our Mylar Bags are a great product.
regards
The Pro-Ex Team
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