Is Coffee Gluten-Free?

Coffee is gluten free naturally. But, they are adding fillers. And one of them is wheat. 

22 minutes ago, Guest Coffee is gluten free. said:

Coffee is gluten free naturally. But, they are adding fillers. And one of them is wheat. 

Can you substantiate this? What do you mean by fillers? Are you saying coffee manufacturers are adding wheat in order to dilute the coffee grounds in order to lower their costs? Typically, the term "fillers" is used to speak of ingredients that are added to take up space. This is a common practice when making pills but I'm having a hard time seeing how this would apply to coffee grounds.

In instant coffee, especially flavored ones, sometimes wheat is added along with the flavorings.   Same as spices having added wheat as a filler and to prevent clumping.

I had to quit buying International flavored coffees because of this.  Plain unflavored coffees should be fine.  

If wheat is included then it must say so on the ingredient label. I've not seen wheat used as described in the comments, at least not in the USA.

Well, this was decades ago, before the new nutritional and ingredient information labeling requirements.  

This does not include anything about cross contamination in the manufacturing process.  Of course we can read an ingredient label.  The question we should be asking is if it's manufactured on shared equipment, putting it in contact with gluten. This would not be disclosed on the label.  It's up to each of us to be safe and ask the right questions for our own health.  These articles should all be updated because they are misleading.  

Actually if shared equipment with a top allergen, and wheat is one of them, as a best practice it should be disclosed on the ingredient label as "made in a facility that includes wheat" or "made on shared equipment with wheat."  Most large companies now disclose any possible risk with the top 8 allergens, but not all companies do this.