I have watched people put unwashed eggs in a container filled with pickeling lime and store them for long periods of time - each time it appears that they are using large glass containers to put the eggs in - I buy pretzels that come in large plastic containers - I was wondering if these can be used for this purpose or do you think that the lime would react with the plastic and spoil the eggs - I guess you can call the plastic pretzel container food grade - I buy the pretzels at Costco