pure vanilla extract from Costco

Hi. I just spoke to the company. Here’s what they said:
This is a gluten free product. The alcohol may be a derivative of sugar beets, cane sugar or corn. It may also come from other products not listed.
The representative did not have more information other than to say it did not have wheat and is gluten free.
Is there still a safek about it being hametz?

This helps. Ok for all