NEW - Summer 2026 

Fresherpack Extra Heavy Duty Mylar Foil Bags 204um = 8mil thick Size: 25cm x 35cm

Designed for use in tougher situations where the product you are storing has sharper edges for example dried pasta or bones, the extra thickness of Fresherpack's new extra heavy duty Mylar Bags, solves the problem of puncturing the bag. This bag has been specially produced to be the thickest available of its type in the UK & Europe.

Fresherpack premium quality mylar foil bags offer a long-term food storage solution for up to 20 years plus. Extra heavy duty bags 8mil thick (204um) with tear notch for easy opening, quality product. Offering protection from sunlight, moisture and oxygen. Fresherpack foil bags have a real layer of aluminium foil sandwiched between special plastic, this allows them to be easily heat sealed.

Our foil bags are a fantastic product for long-term food storage of rice, pulses, dried beans, flour, sugar, seeds and hops or for your precious items, for example photos, vinyl albums, comics, clothes, the list is endless. The size of this bag is 25cm wide by 35cm long. The foil bag opens on the shorter side, with a tear notch on the longer side for easy opening of the bag once sealed, by hand.

Our premium extra heavy duty foil bags are:

• Even thicker than you'd expect - Each side of our bags are 8mil (or 204um) thick with two sides to each bag the total thickness is an impressive 16mil (or 408um)
  
  
• Lightproof - Due to the real layer of aluminium and not the cheaper sprayed on metal colour version (metallised) which shows pinholes easily
  
  
• Smellproof - Once sealed smells cannot escape, this is due to extra thickness of our premium bags
  
  
• Moistureproof - Once sealed moisture from the air or even ground cannot enter as air tight seal is made, due to premium quality of the bag
  
  
• Boil in the Bag / Freezer Proof - Suitable for boil in the bag, due to special glue used,  for up to 30 minutes and down to - 60 degrees Celsius
  
  
• Food-grade and BPA free - Safe for food contact
  

To seal these bags use a household clothes iron on the high setting, with no steam or hair crimper.

8 mil thick (204um), most are around the 3.5 mil mark many other suppliers don't mention the thickness of the foil bag for this very reason. This extra thickness is important as this offers extra protection from the UV (ultra-violet) in sunlight and also from oxygen penetration for the air around, plus are very hard to puncture accidentally. These foil bags are multilayered and have a food safe inner.

Foil bags are usually used with oxygen absorbers, please see the related items below. These remove the oxygen from inside the bag, preserving the shelf life of the food stuffs above for many years, usually up to 10 years. For camping or hiking trips or similar, oxygen absorbers are not really needed.

The 300cc oxygen absorbers we sell match this bag size and you will need one oxygen absorber in each bag.