Can a non US Cook-Key® be used on a US TM5? Yes. And with this configuration the user can access a non US Cookidoo® account. Related articles What do these Cook-key® Error Codes mean? Can a foreign Cookidoo® account be moved to the US? Is the Thermomix® appliance protected from viruses and hacking when using the Cook-key® Is the Cook-Key® available in the US? What is the price of the Cook-Key®?