adj. Of or relating to a product or material that can withstand the heat generated by conventional, microwave, or toaster ovens.
2001
The Vancouver, Wash.,-based trade association pointed out that besides being fabricated from the most recycled material in the world, aluminum foil containers are consumer friendly and 'tri-ovenable' — they can be placed in conventional, microwave or toaster ovens for heating without melting, charring or compromising the food's flavor.
2001 (earliest)
Aluminum foil containers are advantageous for a number of reasons, such as: …
- Tri-Ovenable: Foods in aluminum foil containers can be placed in microwave
It uses the 'ovenable' paperboard as an outer package and instructs the consumer to put the whole thing directly in the oven.