I'll only buy food that is in containers and clean the containers with a cloth with soapy water. Hopefully, soapy water is suitable. If I'm lucky I'll be able to get methylated spirit in the grocery store to make methylated spirit 70%. This concentration is mentioned in [1]. I could then fill up the empty bottles of surface disinfection spray that I've collected in the last year.

[1] https://www.pphsn.net/Activities/PICNet/SECTION_7.pdf , page 101