No prob...my buds are cured in glass jars, but I think---without looking---my Tupperware is rubber. Maybe it's a Rubbermaid....

Hehehehehehe, Rubbermaid....

After following Harddon's Hash Oil recipe, rubber was the last thing I tasted. It pretty much just turned a room full of fairly normal people into zombies. Taste wasn't an issue.

Good luck!