Flat Bottom Bags · Kraft Paper Brown
Flat Bottom Bag Kraft Paper Brown with Valve and Zipper
The flat bottom bag kraft paper brown with valve and zipper protects degassing food such as freshly roasted coffee. The integrated BOPA high barrier and the branded valve work together to provide optimal product protection, extended shelf life and maximum functionality – entirely without aluminium.
The high-quality BOPA layer reliably protects the contents from moisture, oxygen and other external influences, and is significantly more tear-resistant than conventional materials – ideal for heavier fill goods or delicate aromas. The integrated one-way aroma valve lets fermentation gases such as CO₂ escape in a controlled way, without oxygen being able to enter.
Material
Kraft paper | BOPA | PE
Barrier properties
High (aluminium-free)
Closure
Zipper (press-to-close)
Sizes
100 g – 1000 g (4 variants)
Branded Valve
Lets fermentation gases escape without oxygen getting in.
BOPA High Barrier
Tear-resistant and reliable protection against moisture and oxygen.
Aluminium-Free
High-barrier protection with no aluminium layer at all.
Pre-Opened Zipper
Resealable for portion-by-portion dispensing.
Flat Bottom, Very Stable
Stands securely, even when empty.
Side Gussets
High volume capacity with minimal material use.
Sealable, Rounded Corners
Securely closable with a premium overall appearance.
Food-Safe
Odourless and taste-neutral, for direct product contact.
Applications
The flat bottom bag with valve is especially suited for products that continue to release gas after packaging:
Freshly Roasted Coffee
Tea
Spices
Nuts
Dried Fruits
Muesli & Granola
Baked Goods
Pet Food
Processing & Handling
The one-way aroma valve works automatically: fermentation gases escape in a controlled way, while no oxygen can enter from outside – keeping the aroma of freshly roasted or freshly packaged goods fully intact, even right after filling.
The pre-opened zipper makes filling easier in your production process and lets the bag be resealed as often as needed after opening. The flat block bottom with side gussets ensures a secure stand on the shelf, even when the bag is only partially filled.
With Valve or Without Valve? The Difference
| Feature |
With Valve (this item) |
Without Valve |
| Suited for |
Degassing products (e.g. freshly roasted coffee) |
Non-degassing products |
| Barrier layer |
BOPA high barrier |
Depends on version, usually without BOPA high barrier |
| Recommended for |
Coffee, tea, spices right after roasting/processing |
Dry, non-fermenting fill goods |
Your product doesn't degas and doesn't need a valve? Then you'll find the matching alternative in the flat bottom bag kraft paper brown with zipper. Other versions in this range: with viewing window and zipper, with transparent side gusset and zipper, with pocket zipper as well as with valve and pocket zipper. The complete overview is available in the Flat Bottom Bags category.
Available Sizes
| Fill Weight |
Dimensions (W × Gusset × H) |
| 100 g |
110 × 55 × 185 mm |
| 250 g |
130 × 65 × 225 mm |
| 500 g |
160 × 75 × 270 mm |
| 1000 g |
180 × 90 × 300 mm |
Values taken from the order variant selector; the item attribute table below this description still differs at 1000 g on the German page as of this writing (backend data cleanup recommended). The EN item attribute table already shows the matching value.
Frequently Asked Questions
What is the valve needed for?
For products that continue to release gas after packaging - freshly roasted coffee above all. The branded valve lets these gases escape in a controlled way, without oxygen entering.
Is the bag aluminium-free?
Yes. The BOPA high-barrier layer reliably protects the fill goods, entirely without aluminium.
Can the bag be opened and resealed multiple times?
Yes, the pre-opened zipper (press-to-close) is resealable as often as required and is well suited for portion-by-portion dispensing.
What sizes are available?
Four sizes from 100 g to 1000 g fill weight, each with matching dimensions – see the size table above.
Is the bag food-safe?
Yes, the bag is food-safe as well as odourless and taste-neutral and is suitable for direct product contact.
Flat Bottom Bag Kraft Paper Brown with Valve and Zipper · aluminium-free · BOPA high barrier · food-safe · resealable · 4 sizes from 100 g to 1000 g
