Are these standard lid sized wide mouthed canning jars?
No, these are not standard canning jars with mason-style lids. This jar has an 89-400 continuous thread neck finish, which is designed to work with screw-on continuous thread caps rather than standard two-piece canning lids used on wide mouth mason jars, which typically use a different finish such as 70-450. For more information, or if you have additional questions, please reach out to our Customer Support team at online@tricorbraun.com.