Since you're freezing it, you can use leftover food jars (jam jars,
peanut butter jars, etc.)
Priscilla


Freezing food in glass is very dangerous... if you're lucky when the
food expands the entire jar will burst, but often only a thin
inconspicuous sliver will get knapped off and no one will know until
there's oodles of blood in the toilet. And that's why so many food
products are no longer packaged in glass, especially typical help
yourself kid foods like peanut butter.