I don't think there is a way now. There is already a button in the tooltip window for things like honey and grapes to toggle whether or not it can be converted to food. The same sort of thing could be generalized for all stockpiles to add a button to allow/disallow consumption.

UI note though - it would be better to have the state of these toggles (consumption allowed, consumption disallowed, food conversion, etc) be a small icon next to each stockpile rather than having to hover over each item to see it in the hovertext window.

Conversion Professions have a "Stop Working" button in the upper-left corner of the screen after you've clicked on the Clan in the Clans Screen. Let me know if you don't see it or if it's not working.

- Jon

Found it! Thank you for your quick response.

No problem! Let me know if you have any other questions about the game. :)

- Jon

Of course! Thanks again!

Could this button be added for professions that burn resources for a passive benefit? Baker, glassmaker, etc.

Thanks Jon.

I think that the location of this button is far less intuitive than other buttons in the game.

Fair points, added to the list.

- Jon