Yes you can add hot ingredients or liquid to the glass jug as this is heat resistant.
The lid has a removable measuring cap which allows steam to vent.
When adding hot liquids, remove the measuring cap in the lid to allow any steam to escape and always start at slow speed (or on soup function).
Never process hot ingredients in the Blendcups or Mill attachments.
Blending hot foods in a vessel with a lid and no vent can lead to a build-up of pressure, forcing out scalding steam or liquid.