{"title":"Extra Heavy Duty Mylar Foil Bags","description":"\u003cp\u003e\u003cstrong\u003e*New for 2026* \u003c\/strong\u003eExtra Heavy Duty Mylar Foil Bags from Fresherpack. Order today, fast delivery from our UK warehouse.\u003c\/p\u003e\n\u003cp\u003eThe thickest bag mylar foil bag available in the UK \u0026amp; Europe 204um thickness = 8mil thickness. This is the thickness of one side of the bag, each bag has two sides so total 408um in thickness.\u003cbr\u003e\u003cbr\u003eUseful for storing sharper items that could potentially puncture our regular mylar foil bags, for example pasta, bones, pointy items and so on. The lightproof, smellproof and moistureproof properties of the bags are the same.\u003c\/p\u003e\n\u003cp\u003eWe currently have the most popular and useful size the 25cm x 35cm bag, if you have bulk requirements for a different size, drop us a line.\u003c\/p\u003e","products":[{"product_id":"fresherpack-mylar-foil-bags-25cm-x-35cm-10-inch-x-14-inch-hold-up-to-2kg-copy","title":"Fresherpack Extra Heavy Duty Mylar Foil Bags 204um = 8mil thick Size: 25cm x 35cm","description":"\u003cp\u003e\u003cstrong\u003e\u003cem\u003eNEW - Summer 2026 \u003cbr\u003e\u003c\/em\u003e\u003cbr\u003eFresherpack Extra Heavy Duty Mylar Foil Bags 204um = 8mil thick Size: 25cm x 35cm\u003cbr\u003e\u003cbr\u003eDesigned 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 \u0026amp; Europe.\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003eFresherpack 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.\u003c\/p\u003e\n\u003cp\u003eOur 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.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eOur premium extra heavy duty foil bags are\u003c\/strong\u003e:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEven thicker than you'd expect \u003c\/strong\u003e- 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)\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightproof\u003c\/strong\u003e - Due to the real layer of aluminium and not the cheaper sprayed on metal colour version (metallised) which shows pinholes easily\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmellproof\u003c\/strong\u003e - Once sealed smells cannot escape, this is due to extra thickness of our premium bags\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoistureproof\u003c\/strong\u003e - Once sealed moisture from the air or even ground cannot enter as air tight seal is made, due to premium quality of the bag\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoil in the Bag \/ Freezer Proof\u003c\/strong\u003e - Suitable for boil in the bag, due to special glue used,  for up to 30 minutes and down to - 60 degrees Celsius\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFood-grade and BPA free\u003c\/strong\u003e - Safe for food contact\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTo seal these bags use a household clothes iron on the high setting, with no steam or hair crimper.\u003cbr\u003e\u003cbr\u003e8 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.\u003cbr\u003e\u003cbr\u003eFoil 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.\u003c\/p\u003e\n\u003cp\u003eThe 300cc oxygen absorbers we sell match this bag size and you will need one oxygen absorber in each bag.\u003c\/p\u003e","brand":"fresherpack.co.uk","offers":[{"title":"Pack of 50","offer_id":56739044458873,"sku":"X002IVMNB1","price":39.99,"currency_code":"GBP","in_stock":false},{"title":"Pack of 600","offer_id":56739044524409,"sku":"X002IVMN6V","price":419.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0450\/3260\/3811\/products\/Foil-Bags-Mylar-Bags-25cm-x-35cm-10-inch-x-14-inch-hold-up-to-2kg_5909b17d-3387-4780-8489-228e3fe13b17.jpg?v=1696149182"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0450\/3260\/3811\/collections\/Extra_Heavy_Duty_Mylar_Foil_Bags_208um_Thickness_Fresherpack_6e059f4d-1ec6-4758-863b-cf464192064d.jpg?v=1772103514","url":"https:\/\/fresherpack.co.uk\/collections\/extra-heavy-duty-mylar-foil-bags.oembed","provider":"fresherpack.co.uk","version":"1.0","type":"link"}