The best Mylar bags do well for your product? That’s where a Mylar bag size chart comes in – it’s your go-to tool for determining the best packaging. To keep coffee, herbs, or snacks fresh and aesthetically appealing, the right size and shape is important. Staysure Packaging helps you understand mylar bag size so that your products always look the best and stay safe.
What Are Mylar Bags?
Mylar bags are durable and flexible pouches, made from PET. They are also highly repellent of moisture, oxygen, and light. This makes them great for food preservation, herbs, electronics and even pharmaceuticals.
There’s an entire range of sizes to fit every need. We have ounce Mylar bags, 1 pound Mylar bags, and 1 pound Mylar bags. This bag contains a wick and keeps it protected from air and chemicals thus prolonging shelf life and product quality.
How Are Mylar Bag Sizes Measured?
Measurements of Mylar bags are based on inches/height and ounces/grams/g. In addition, the thickness in mils also affects storage performance and durability. Here’s the basic outline:
- 3.5 Gram Mylar bag: about 3×4 inches
- 1 ounce Mylar bag, about 4×6 inches
- 8 oz. Mylar bag: 5×8 inches.
- 1 pound Mylar bag 10×14 inches, 10 in. by 1 pound
Knowing size and size is essential for choosing the best bag without spending money or space.
Mylar Bag Size Chart for Common Uses
A Mylar bag size chart simplifies your packaging decisions. Here’s a helpful reference table:
| Bag Size (Inches) | Capacity | Best Use |
| 2.5×3.5 | 3.5 grams (eighth bag) | Small herbs, samples |
| 3×4 | 1/2 oz | Spices, tea samples |
| 4×6 | 1 oz | Coffee, gummies, small snacks |
| 5×8 | 8 oz | Dried fruit, nuts |
| 8×12 | 1 lb | Rice, beans, flour |
| 10×14 | 2 lbs | Freeze-dried food, grains |
| 12×18 | 5 lbs+ | Long-term storage or bulk packaging |
At Staysure Packaging, we offer all these standard sizes and even create custom Mylar bag sizes based on your unique needs.
Why Do Mylar Bag Sizes Vary by Product Type?
The sizes of the product need different storage capacities. This is why Mylar bag sizes vary depending on the material used.
- Food packaging: Large to large Mylar bags (8 oz to 1 lb) for rice, nuts, or pasta.
- Herbal and weed storage bags are small 3.5 grams Mylar bags preserving aroma and freshness.
- Coffee and tea: medium size 4×6 or 5×8 inch bags to protect flavor and fragrance.
- Bulk goods: 1 pound Mylar bags or larger to be kept or used long term. or commercially.
Each type of product is designed to fit in its own special bag and thickness, making the ideal protection and freshness possible.
How Many Grams Fit in a Mylar Bag?
If you ever ask “How big is 1 oz bag?” or “What fits in a 3.5 gram bag?” then here’s a quick answer:
- 3.5 g Mylar bag: holds 8 ounces.
- One oz of Mylar bag: 28 grams, ideal for coffee or small herbs.
- 5 grams bag: a small herb or powder size.
- 8 oz Mylar bag: about 225 grams of which, would be fine for nuts or tea.
- 1 lb Mylar bag: about 450 grams – great for storage.
If the product is made of fabric or textiles, the same will be different depending on the thickness and texture of the product.
Understanding Mylar Bag Thickness
The thickness of the bag helps determine how well a Mylar bag protects its contents. It’s a thousandth of an inch. The thicker the bag is, the stronger its barrier.
- 3 mil bags. Light weight, flexible, and best for short-term use.
- 5 mil bags: food and herbal wrapping thickness.
- 7+ mil bags: Large-duty, long-term storage bag.
With 5 mil Mylar bags available for all you need, and 7 mil bags available for those needs, Staysure Packaging recommends the 7 mil bags for daily use and 2 mil bags for more fragile items.
Why Custom Mylar Bag Sizes Are Worth It
Custom sizing gives you control over how your product looks and feels in the customer’s hand. You can tailor every detail—dimensions, material, design, and print.
Benefits of custom Mylar bags include:
- Perfect fit for your product
- Unique branding opportunities
- Professional and consistent appearance
- Cost-efficient packaging
- Enhanced product visibility on shelves
Staysure Packaging specializes in creating custom Mylar bags that blend branding with performance—so your products don’t just stay fresh, they stand out.
Mylar Bag Sizes for Weed and Eighth Bags
In the cannabis industry, presentation and preservation go hand-in-hand. Weed eighth bags—typically 3.5 gram Mylar bags—are small but essential. They’re designed to hold an exact eighth of an ounce, keeping products airtight and odor-proof.
We also provide 1 ounce Mylar bags for larger portions and custom-printed weed bags to give your brand a high-end, professional look.
Mylar Bag & Oxygen Absorber Chart
Pairing your Mylar bag with the right oxygen absorber extends shelf life. Here’s a quick reference:
| Bag Size | Oxygen Absorber (cc) |
| 3×4 | 100 cc |
| 5×8 | 300 cc |
| 8×12 | 500 cc |
| 10×14 | 1000 cc |
| 12×18 | 2000 cc |
This combination prevents oxidation and keeps food and herbs fresher for longer.
Final Thoughts: Why the Right Size Matters
Selecting the correct Mylar bag size might seem small, but it’s a crucial decision. It affects product presentation, freshness, and customer satisfaction. A good fit keeps your goods safe, your brand consistent, and your packaging cost-effective.
At Staysure Packaging, we don’t just sell bags—we deliver smart packaging solutions. From 3.5 gram bags to 1 pound Mylar bags, we craft every size with care, quality, and customization in mind.
So, if you’re looking to package your products perfectly, trust Staysure Packaging—where durability meets design, and every product fits just right.
Faqs
How big is an 8 oz Mylar bag?
Typically around 5×8 inches—ideal for tea, nuts, or small food items.
Can I reuse Mylar bags?
Yes, if you open them carefully and reseal with a heat sealer.
What’s the difference between 1 oz and 1 lb Mylar bags?
The 1 oz bag holds small portions, while the 1 lb bag is great for bulk food storage.
Do you offer printed or branded Mylar bags?
Absolutely! Staysure Packaging offers full-color printing with your logo, text, and design.
What’s the ideal thickness for long-term storage?
Go for 7 mil Mylar bags paired with oxygen absorbers for maximum shelf life.