Take care when removing the tray and handling the bag. Both will be hot after their baking period. The bags will be small and hard, and generally difficult to shape. The bags become easier to bend if they aren’t fully shrunk. A bag will shrink down to approximately 25% percent of its original size depending on whether you cook it for the fully suggested time, or a lower time.
Note that the aluminum lining the inside of most chip bags will cause sparks in the microwave. If you choose to use the microwave to shrink the bag, watch the bag very carefully.
Don’t try shrinking multiple bags at a time in the microwave. This will increase the amount of time required to shrink each bag, which can lead to a greater risk of the bags igniting into flame. [3] X Research source The bags will be small and hard, and generally difficult to shape. The bags become easier to bend if they aren’t fully shrunk. A bag will shrink down to approximately 25% percent of its original size depending on whether you cook it for the fully suggested time, or a lower time.
Staple the top of the bag shut if you’re concerned the bag will rip while in your pocket. This also provides some additional heft to the bag. Scissors or an awl can also be used to create a hole for the keychain loop if you don’t have a hole puncher handy.
Lapel pins and studs can also be used to secure the bag to your backpack. Check your local jeweler for information on the types of backs you can use. [4] X Research source
The bags will be small and hard, and generally difficult to shape. The bags become easier to bend if they aren’t fully shrunk. A bag will shrink down to approximately 25% percent of its original size depending on whether you cook it for the fully suggested time, or a lower time.
