Your task is to design a microwavable heat bag with a volume of 1500 cm3. The bag will be completely filled with a filler such as wheat, fax or other grain that can be microwaved. The longer the bag maintains its heat the better, so you may want to experiment with several different kinds of filler, or even a combination. The bag needs to fit inside a microwave oven, so it cannot be larger than the circular glass dish found in most microwaves which has a diameter of 30cm. The maximum height of the bag, so it will not touch the roof of the microwave, is 20cm.
Answers
Step-by-step explanation:
NOTE: In addition to the tutorial below, you can also go here to watch a video tutorial to make these homemade heat pads filled with flax AND download a set of printable tags with directions for using!
My entire extended family loves using these easy-to-make flaxseed pillows for everything from sore necks to foot warmers (on cold nights it's a treat to slide into bed with warm toes!).
They have been one of the most popular handmade gifts I have given, as well as one of the most popular things I sold when I had a craft business. And the fact that they are super easy and inexpensive to make is just a nice bonus!
While you may think that rice or corn would work just as well - and be cheaper - as a filler for DIY warming pads, there are lots of reasons why flax is better.
For a heating pad with lasting quality, using whole flaxseeds is really the only way to go.
WHY FLAXSEED INSTEAD OF OTHER GRAINS?
Whole flaxseed provides a gentle, moist heat which promotes healing.
Flaxseeds are flower seeds, rather than grains, so they contain 30-40% oil which remains inside the seed to be warmed again and again. Other products lose their ability to retain heat as the water cooks out of them over time.
When heated, flaxseed pillows retain half their heat after an hour. Under covers (think about those toes...) the pillow will still be warm hours later.
Step-by-step explanation:
SuppliesInstead of using electric heat pads & blankets or hot water bottles for your aches and pains, these microwaveable packs are just the ticket!
SuppliesInstead of using electric heat pads & blankets or hot water bottles for your aches and pains, these microwaveable packs are just the ticket!They’re known by a few different terms such as: bed buddies, stress busters, rice or magic bags, corn cozies–but they’re basically all the same thing.