Will this wax make Slate coasters food safe?

I recently laser etch some slate coasters found here

https://a.co/d/5ouoqy7

I also bought this food safe stone wax to apply

https://a.co/d/9HGAa5A

I want to serve cheese, sushi, etc on this. Will this wax be enough? Do I need to seal it some other way too? Finding information online has proved difficult, any help would be much appreciated!

Thanks!

I recently laser etch some slate coasters found here

https://a.co/d/5ouoqy7

I also bought this food safe stone wax to apply

https://a.co/d/9HGAa5A

I want to serve cheese, sushi, etc on this. Will this wax be enough? Do I need to seal it some other way too? Finding information online has proved difficult, any help would be much appreciated!

Thanks!