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Gluten Free Beer - The Enzymatic Hydrolyzation Process Problem


Jason Dyer

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Jason Dyer Newbie

I recently saw an article on Celiac.com (paid, I believe) about a great gluten-free beer that uses an enzymatic hydrolyzation process to reduce gluten below 20 parts per million (ppm), but I was unable to leave comments. That prompted me to craft this post.

The article claimed that barley-based beers that use enzymes to break the gluten protein chain result in a final product with a dramatically reduced gluten content, at least as can be presently measured using the R5 Competitive ELISA test. That sounds great, doesn't it? So, why the post?

I have celiac disease, I'm a former home brewer, and I have collaborated with several craft brewers on gluten-free batches using barley. That's far from being a master brewer or a gastroenterologist—full disclosure—but I've been studying this topic for the better part of 20 years and testing many beers on my biome, and here's what I've learned.

If you are gluten intolerant, these enzyme beers (as I call them) are great. If you are a celiac like me, you are STILL rolling the dice with these beers in two important ways.

First, they all have a slightly metallic finish, which I believe has to do with the enzymes because they all taste that way to me. I'm not here to bash any brands trying to serve our community legitimately. So, I won't name names, but if you are reading anything on this site, you likely know the ones that are out there. Second, and more importantly, while these enzyme processes DO cleave the gluten proteins into smaller chains, they DO NOT remove them. It makes the proteins smaller and, as the theory goes, that makes them easier to pass through the gut. It also conveniently makes them harder to detect using the R5 Competitive ELISA test. Do you believe that means the enzyme beers are safer?

Almost every celiac I have spoken to has told me the same thing. You may get one enzyme beer that does not trigger symptoms, but the next one you pull sends you to the bathroom. Again, you are rolling the dice with enzyme beers. 

You say, what about the sorghum, rice, corn, and buckwheat beers? Well, as a brewing product, they are awesome. Some great brewers are doing creative things using these grains to make some amazing alternatives. Kudos to them and THANK YOU. However, the mouthfeel is not the same. If you have ever known barley-based beer, you can taste the difference. Some are bitter. Some are a little skunky. Some are stale. Some are so buried in flavors or hops that you can't taste anything else at all. And hey, maybe that's ok. The world of beer has gone practically crazy with hops, fruit, and other additives to win over younger drinkers who did not grow up seeing beer as the thing to drink. Gluten free brewers are not immune to trends in market preferences. 

But, what am I saying?

There are alternative methods that taste great and are safe, but enzyme beers are not among them. Don't believe the marketing. My own body tells me so, and so does what I have learned from numerous experts about the process of enzymatic hydrolyzation. Again, I'm not a master brewer, chemist, doctor, or lab tech, but I've done a ton of research and can speak from personal experience.

My pitch: if you are a brewer or know a brewer who wants to invest in gluten-free barley-based brewing, contact me. There is a way forward that is not about alternate grains or enzymes. Honestly though, I found traditional brewers to be too distracted by their gluten-rich business to allocate consistent resources to what is a dietary requirement and preference of 20-30% of American consumers. Does adding my pitch here mean this post is all about finding a brewer to work with? No. I hate to see enzyme marketing without a fuller understanding of what happens with the protein, test, and celiacs. I know new celiacs will use this site and others, looking for a beer option, and will end up sick. And, if I've learned anything in the past 20 years, traditional brewers don't want to tackle the gluten-free market. So, my pitch is merely the longshot, last ditch effort of a beer-loving celiac. I don't expect anyone to contact me. I hope that the readers of this post will look at the enzyme beers with more caution than their marketing provides. 

 


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Scott Adams Grand Master

I can testify that Daura does not have a "metallic" taste, or any off taste at all--it's an outstanding beer. I have celiac disease and don't have issues with Daura, but do agree that gluten reduced beers are not for everyone.

I also started back in the mid-90's brewing gluten-free beer, so do know a lot about how they do this--AN-PEP enzymes like those in Clarex have been shown in studies to break down gluten (this does not instill any off tastes that I have ever detected), and modern filtration processes further remove remnants of gluten. 

There are also studies that show some regular beers have extremely low gluten content, even if they do not use such enzymes. Some of our users with celiac disease have reported drinking regular beers for years without any issues or elevated antibody tests or villi damage, but others have discovered that they cannot tolerate the same beers, or any gluten reduced beers. There are plenty 100% gluten-free beers that use alternative grains for those with celiac disease who prefer to avoid reduced gluten beers.

trents Grand Master

Jason, I have a bone to pick with your terminology. There is "gluten intolerance" which I believe is synonymous with celiac disease and then there is "gluten sensitivity" which comes from Non Celiac Gluten Sensitivity or NCGS for short. It is true, however, that there is still a lot of inconsistency in the use of these terms.

Jason Dyer Newbie

Thanks, Scott and Trents.

Scott, tastes vary of course. The metallic taste may just be me. As to the filtration efficacy, I can only add that the micron level to remove a smaller protein chain must be pretty tight. What about the impact of hydrolization on the R5 test? I've been told it presents a challenge.

Trents, thanks for the clarification. I did not draw this distinction, but can. I honestly didn't perceive the nuance. 

Appreciate the feedback from you both. 

trents Grand Master

I'm wondering if this is the same issue some celiacs have with distilled liquors. The complete gluten molecule is too large and heavy to to travel up with the vapor but if their are gluten fragments created by the heat, they may not be and the immune systems of some celiacs still recognize it as gluten. I have no scientific proof for this, just a thought because we have so many forum contributors who still react to these "gluten removed" products.

Jason Dyer Newbie

Trents,

It's a good question. The experts I have spoken to have told me the distillation process does remove the offensive proteins. Again, I'm not the expert on that. I'm only reporting. I don't have any issue with distilled spirits that don't have any additives.

That said, maybe there is something else at play here? Good question for the forum. 

Scott Adams Grand Master
  On 3/2/2025 at 9:56 PM, trents said:

Jason, I have a bone to pick with your terminology. There is "gluten intolerance" which I believe is synonymous with celiac disease and then there is "gluten sensitivity" which comes from Non Celiac Gluten Sensitivity or NCGS for short. It is true, however, that there is still a lot of inconsistency in the use of these terms.

Expand Quote  

Actually, gluten intolerance and celiac disease are not the same. Celiac disease is an autoimmune disorder triggered by gluten, while gluten intolerance is a broader term that can include Non-Celiac Gluten Sensitivity (NCGS). NCGS involves gluten-related symptoms without the autoimmune or allergic response seen in celiac disease. The terms are often used inconsistently, which can cause confusion.


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Scott Adams Grand Master

For those with celiac disease we know that there is a huge range in sensitivity, for example we've had many members here who report that even smelling wheat bread cooking in a bakery, for example a bakery in a supermarket, triggers an immediate gluten reaction that can last days or longer. Is there science to back this up--not that I've seen. Does this mean that it can't happen? Since it does seem to happen to some people, I can't say that there isn't something real happening to these folks. 

Similarly there seems to be celiacs who can drink even regular beers, many of which have detectable gluten at under 20ppm, without issues, and many drink gluten reduced beers made from barley on a daily basis without issues, and without elevated antibodies or damaged villi. I also know that some celiacs report getting very sick from a single sip of gluten reduced beer. To be on the safe side it's probably best to stick with a naturally gluten-free beer, however, many of them lack the real beer taste, thus, some celiacs cheat on their diets and just drink regular beer. In this case I think having a choice is important, and drinking a gluten reduced option would be better than regular beer. 

Scott Adams Grand Master

PS - Many new celiacs report that they can go gluten-free, with the exception of giving up beer. That seems to be a bridge too far from many celiacs, and may be why nearly 20% cheat on their diets:

 

Jason Dyer Newbie

Wow. I mean, I REALLY don't want to give up beer, but I NEVER cheat. I get caught (glutenized in my vernacular), but I never cheat. I didn't even know that was a thing...

trents Grand Master
  On 3/3/2025 at 6:31 PM, Scott Adams said:

Actually, gluten intolerance and celiac disease are not the same. Celiac disease is an autoimmune disorder triggered by gluten, while gluten intolerance is a broader term that can include Non-Celiac Gluten Sensitivity (NCGS). NCGS involves gluten-related symptoms without the autoimmune or allergic response seen in celiac disease. The terms are often used inconsistently, which can cause confusion.

Expand Quote  

Scott, I know full well that celiac disease is an autoimmune disorder and gluten sensitivity is not. And I agree that there is inconsistency in the use of the terms. But my contention is that "gluten intolerance" should not be used of NCGS since "gluten sensitivity" is actually found in the gluten disorder known as Non Celiac Gluten Sensitivity and, therefore, "gluten intolerance" should be reserved as a common/nonmedical equivalent for celiac disease. It also seems to me that "intolerance" implies something more severe than does "sensitive". And it just seems to me that, though there is still a lot of inconsistency in the use of these terms, there is a movement toward using "gluten intolerant" to refer to celiac disease rather than NCGS. But that is just my opinion and perhaps, to be honest, a bit of a personal crusade. Actually, we would all be better off if we quit using the those informal terms "intolerance" and "sensitivity" and just speak of celiac disease and NCGS.

Scott Adams Grand Master

As I mentioned, gluten intolerance encompasses more than just those with celiac disease, and in the past was used more like the term "gluten sensitivity" is used today.

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