We found the reason that people is unwilling to bring tumbler for coffee is because regular tumbler is "hard" to be carried. So we invented FoFoCup, which is weightless, reusable, and can be folded to less than 1 cm within a second.
FoFoCup is made of Polypropylene (PP) by mold injection. So it can stand up to 120 degree Celsius. It is good for both hot and iced beverage, is both acid resistant and alkaline resistant. When it is open and ready to be used, it's hard to distinguish FoFoCup from regular paper cups. But it can re-folded more than 1,000 times when used correctly.
The concept of FoFoCup comes from ancient Chinese, who believed that the heaven is round, and the earth is square. It might be incorrect, but it makes a cup can be folded.
The idea might be simple, but it's extremely difficult to produce. The mold for injection is special, the material needs to be selected from thousands of different kind of Polypropylene (PP), the production parameter needs to be tested and tested hundreds times.
That's why it takes us more than 4 years to get FoFoCup into mass production, and so far, we are just about to reach the milestone of 100,000 FoFoCup. It's never easy to be perfect, we are still striving for it.
Oh! One more advantage of FoFoCup is that it can be recycled 100%.
Even we could have the best fiber cup that is compostable. We still need to harvest enormous fiber from the plants, and we need to build up tremendous recycling system for the fiber cups, which we don't have today. While PP is made of propylene, which is a byproduct of oil refinery. If we don't utilize it, the propylene will be burned, and accelerate the greenhouse effect. Unless, human being can quit the rely on gasoline someday.
So why don't we utilize this "waste" to make a reusable, foldable and recyclable cup, instead of thinking a solution based on old way?