Happybellies 7oz canisters are injected with liquid nitrogen to extend shelf life. Organic baby foods manufacturer happyfamily, brooklyn, ny, is marketing its new happybellies&trade brand dry mix infant formula in 7oz composite, preformed, prelabeled canisters supplied by a leading, undisclosed manufacturer. The gasbarrier canisters are filled and bottomseamed by a contract packer. After filling and before seaming, the canisters are injected with liquid nitrogen ln2 to extend shelf life, using softdose technology from cryotech international, inc. Www.cryotechinternational.com.