@blinry
It looks like you need a bit more to contain it than poor little deli containers:
«Below 50 MPa (500 atm) yeast cell morphology is unaffected»
https://pubmed.ncbi.nlm.nih.gov/16082465/

And even worse (or good?), "What doesn't kill the yeast, makes it stronger":
«mild HHP treatment to wild yeast cells provides multiple protection mechanisms» https://pubmed.ncbi.nlm.nih.gov/23072392/