I’m looking to make a colander/strainer for residential kitchen us. This will be paired with a cutting board. The goal is to make these out of the same material (we will be CNC milling these out of sheet plastic material). The likely choice for the cutting board is HDPE, but I have one plastic supplier telling me that HDPE will not withstand the temperatures that a colander must withstand (water boils at 212* F). They said it will warp and become brittle over time. The specs for HDPE appear to support this (heat deflection is at about 165* F, the softening point is 257* F) however I don’t know much about what these specifications mean.
I’ve asked around for alternatives, but the food safe (FDA approval) seems to be a big sticking point.
Can any plastics pros out there comment on the use of HDPE for this purpose?
Does anyone know of a good machinable alternative that will function well as a cutting board and a colander?
Any info GREATLY appreciated!