Transfer your grains, beans, rice and pastas from bulk buckets to store in more manageable-sized Mylar bags. By packaging smaller servings, you can pre-plan meals and limit oxygen exposure. Fill bag with your dry food leaving a few inches from the top, add an oxygen absorber to take out air, then place bag on a flat surface. Seal the open end closed with a hot iron, making sure there are no wrinkles. Store pre-packed food in buckets if desired. Each bag holds approx. 10-12 cups of grain. 5 bags hold 25 lb of grain. 20 per pack, 10"x14". 3.5 mil . USA made. How to Store Your Food in Mylar Bags Mylar bags are best for storing dried food, like grains, coffee, nuts, dehydrated and freeze-dried food. Not recommended for long-term storage of moist food. Here are our tips for filling your mylar bags: Fill bag with your dry food leaving a few inches from the top.. Add an oxygen absorber to take out air, then place bag on a flat surface.. Seal the open end closed with a hot iron.. When sealing, go over 3-4" area several times with iron to create a wide seal. Any wrinkles in seal exposes contents to oxygen. Make sure the iron does not touch the bag's contents.. Store pre-packed food in buckets if desired.. Bulkier dry foods, such as pasta, will take up more space, so bags will hold less compared to quantities of finer food like grain..