How can I make a thermos?
Iqra from Maple, Ontario, Canada
i am making a thermos. for the bottom; half a water bottle in tin foil to prevent radiation. Then, there will be an air space to prevent conduction and convection. Around the air space i am putting Styrofoam, and I'm wrapping the whole thing in cotton and material. For the lid; i am placing a piece of rubber, then covering it in Styrofoam, and cotton and material. duh!
Try making a Styrofoam container surrounded in duct tape, or try using fiber glass surrounded in bubble wrap!
Ask a QuestionHere are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community or ask a new question.
How do you make a homemade thermos?
By pipi from Hungary
Well first you need to get a styrofoam cup and wrap it in aluminum foil then make a glass layer outside with a vacuum that conducts no heat place another layer of metal outside that to reinforce the fragile glass layer and make a cap.
ThriftyFun is one of the longest running frugal living communities on the Internet. These are archives of older discussions.
My son needs to build a hot thermos for school and needs help.
We need to make a thermos that can keep an ice cube from melting with stuff from home. Any suggestions?
What are some good insulators for a homemade thermos that will keep 300ml of soup warm for 4 hours?