We’ve been using these rapi-kool by San jamar, ordered from Hubert. Problem is they keep breaking on us. They seem to shatter in the freezer, and I’m very sure to not overfil them. We’ve probably broken 5 of them last year, at about $30 or so each it’s getting ridiculous. With soup season around the corner here I’d like to look at my other options. What brands do you guys use to stave off the local health department?