[Goonbaggins]

There's a few reasons I wouldn't feel comfortable calling anything made of recycled plastic food safe, but my biggest is from the huge variety of additives that go into products. These don't necessarily play nice with the remelt process. We did do some work on making your own bowls and the like from bio materials though. [0]

When it comes to mechanical properties, they don't change very much as long as you're creating a consistent material with your melt. The t-beam question comes back to basic physics calculations using elastic modulus and allowable stresses of whatever plastic goes into it.

[0] https://community.preciousplastic.com/academy/research/beyon...