Why use Mylar bags? To help prevent or greatly reduce:http://www.survivalunlimited.com/buckets.htm
· Light from deteriorating the contents in bucket
· Oxygen absorption causing rancidity. No oxygen for weevils either.
· Moisture absorption causing mold and organism growth.
· Smell from area stored in from entering the food/water
Excellent for storing anything that you don't want moisture or oxygen entering. Great product for freezing foods in, and storing clothing, pictures, even old documents.
Mylar is an industrial trademarked brand name that is often confusing
In its basic form, mylar is a CLEAR material made from polyester resin. IMPAK produces MylarFoil bags used in a wide range of industries which require moisture and oxygen barriers to ensure product integrity. Polyester film, ('mylar') when laminated to aluminum foil provides additional barrier properties and higher puncture resistance than any metallized polyester structure.
Foodsavers Can't Seal Mylar
Now this is interesting.... you might want to read this..... it says our foodsaver machines can't seal the mylar properly....
Because the mylar bag is made out of a multi-layer material you CANNOT use a regular Food Saver or Seal A Meal unit to seal these bags. Those units just don’t reach a high enough temperature to do the job.
They do tell you about their machines that will seal the bags, though.
“We offer the lowest cost, easiest to use hi-temp heat sealer for sealing the mylar foil bags. It has a wide ½” sealing width for very secure, lasting seals, and you can seal the smaller 1 gallon size mylar bags as well as the ones used with the 5-6 gallon buckets. There are bigger, badder better sealers, but a low-end one is $1500 and they jump immediately into the $3500-$4500 range.”
Linda’s Note: I’m wondering of one can seal them with a hot iron.