Heat and the Destruction of Gluten

This question has been asked countless times over the years. Until now, we have not had any concrete answers.
All too often the gluten-free community runs into restaurants using the same deep frier for gluten items and their gluten-free items. Of course, we know this practice is not acceptable for those requiring truly gluten-free foods, but the uneducated think otherwise.
This study appearing at the International Celiac Symposium 2017 India, shows it's quite difficult to destroy gluten with temperatures used in customary cooking methods. And when it is destroyed, it's not safe to eat [not that gluten is safe to eat in its uncarbonized state...]
Rodriguez Herrera A2, Garcia Sanchez M2, Lamprea Moruno M2, Monje J3, Comino I1
1 Facultad de Farmacia, Spain, 2 IHP Group, Spain, 3 Universidad Pablo de Olavide, Spain
Background
Verify effective elimination of Gluten Immunogenic Peptides (GIP) by home cooking techniques.
Methods
Batches of samples of gluten containing flour, potatoes, and potatoes plus flour matched to controls were tested. Each batch was cooked in laboratory by use of electric stove, gas stove, oil deep fryer, induction stove and water bath and was cooked at temperature range from 91-233°C (196-452 F) for 5 up to 30 minutes. GIP content was tested by GlutenTox® Sticks (KT- 5340 Biomedal Diagnostics) based on antibody G12.
Results
On gas stove was necessary to keep 233 °C (451 °F) for 10 minutes to have absence of GIP detection.
In range 190-200°C (374-392°F) incubation for 30 minutes was needed to have absence of GIP detection. Tests in temperatures below 190°C (374°F) showed presence of GIP at 10 and 20 minutes.
On induction stove temperature up to 246°C (475°F) for 6 minutes was needed to have negativity to GIP.
Lower temperature ranges in spite of extended time up to 30 minutes were unable to get negative GIP. In oven processing never was got negative GIP signal, in spite of processing up to 210°C (410°F) and extended incubation time up to 45 minutes.
Samples processed on electric stove, water bath and deep frying showed presence of GIP in all ranges of time and temperature.
Conclusion
It is not realistic the elimination of gluten (GIP) at home kitchen by heat as temperatures higher that 200°C (392°F) are needed. Extended processing time is no compatible with conventional recipes. Fat processing over 200 is link with toxic metabolites generation which may be harmful. Use of oven or deep frying without proper cleaning may transfer GIP to meals when previously gluten containing meals were processed in these appliances.
Source: http://bit.ly/2CevzOY
Gluten-Free Turkeys 2017

Some turkeys are not gluten-free. Always check the ingredient list! If you are unsure, call the manufacturer and ask questions.
Be aware that the US Dept. of Agriculture (USDA) regulates labeling for meat, poultry, egg products. USDA regulations for labeling allergens [like wheat] are not the same as the FDA regulations. Companies may voluntarily comply with FDA regs, but they are not required to disclose wheat, or barley, rye, or oats or any derivatives.
Starch
Food Starch
Dextrin
Call the company to verify the source as they could be derived from gluten sources.
About 80-90% of the USDA companies follow FDA allergen labeling regulations.
If you are making a turkey for a gluten-free guest, please read our Guide to Gluten Cross Contamination. They'll love you even more!
If this is your first gluten-free holiday season, you might check out our Navigating The Holidays article for some hints and tips.
"For many, the holiday season is filled with smiles, laughter and lots of merriment. However, for those with dietary restrictions, it can be the complete opposite – fear, dread and lots of worriment."
Looking for some holiday recipes?
Check out some of our favorites.
Gluten-Free Holiday Dinner Guide - complete with a few recipes!
INCREDIBLY EASY GLUTEN FREE TURKEY GUIDENeed to prepare a gluten-free holiday dinner? Butterball can help! Our Butterball fresh and frozen raw unstuffed turkeys are always gluten-free, and our gravy pack included with our Butterball Whole and Boneless Breast items is also gluten-free. And for all the trimmings, check out the recipes below to find a variety of gluten-free side dishes and desserts sure to please all your holiday guests. For a detailed explanation on our gluten-free products, visit Are Butterball Turkeys Gluten Free on our Frequently Asked Questions Page.Q: ARE BUTTERBALL TURKEYS GLUTEN FREE?A: All of the Butterball products are gluten free except for Butterball Stuffed Turkey (bread stuffing) and Butterball Frozen Meatballs. For our products that are packaged with gravy packets, the gravy packets are gluten free as well. The gravy contains rice flour instead of wheat flour and the modified food starch is corn based.
Gluten-Free Butterball Turkeys:
Fresh L'il Butterball
Frozen Whole Turkey
Frozen L'il Butterball
Frozen Fully Cooked Smoked Turkey
Frozen Fully Cooked Baked Turkey
Butterball lists several gluten free products on their website. Type type "gluten-free" into their "Search for a product" text box and click Search
Butterball Contact:
http://www.butterball.com/contact-us
Do your hams or turkey breast contain glutens?
Do your hams or turkey breast contain glutens? Our hams and turkey breasts DO NOT contain glutens.
Honeysuckle White Whole Turkeys:
Fully Cooked Oven Roasted Whole Turkey
Fresh Whole Turkey
Frozen Whole Turkey
Oven Roasted Fully Cooked All Vegetarian/No Antibiotics Ever Whole Turkey
All Vegetarian Fed/No Antibiotics Ever Fresh Whole Turkey
Frozen All Vegetarian Fed/No Antibiotics Ever Whole Turkey
Bone-in Turkey Breasts:
Frozen Bone-In Turkey Breast with Gravy (Gravy made with rice flour)
Fully Cooked Hickory Smoked Bone-In Turkey Breast
Bone-In Turkey Breast
Honeysuckle While offers several gluten-free products, however, you have to check each product.
Jenni-O is a Hormel Company. Hormel will clearly gluten (wheat, barley/malt, rye, oats).
Although our products are labeled in compliance with government regulations, we believe the best practice is for you to read the labels on the products to determine if the food product meets your required needs. Parents and individuals with food allergies and/or food intolerances are responsible for reading the label of all products they intend to use regardless of how the product is represented on this site. To help those dealing with gluten sensitivity or allergies, we have a provided a list detailing the wide range of products we offer that are gluten-free.If you have any questions we would to talk to you. Please call our Customer Service Representatives at 1-800-523-4635 or submit your question online.
Hormel's Gluten-Free List (See Jenni-O Brand)
Whole turkeys:
Tender & Juicy Young Turkey (Gravy packet contains gluten)
Fresh All Natural Young Turkey
Premium Fresh Young Turkey
Smoked Whole Turkey
Premium Fresh All Natural RWOA Young Turkey
Oven Roasted Whole Turkey
Turkey Breasts:
Extra Lean Turkey Breast Cutlets
Extra Lean Boneless Turkey Breast Tenderloins
Extra Lean Oven Roasted Turkey Breast
Extra Lean Hickory Smoked Turkey Breast
OVEN READY™ Bone-In Turkey Breast
OVEN READY™ Boneless Turkey Breast
Turkey Breast Roast
Tender & Juicy Young Turkey Breast
Oven Roasted Turkey Breast
Smoked Turkey Breast
Cajun Style Turkey Breast
Split Turkey Breasts
Jennie-O has many items on their gluten-free list.
http://www.perdue.com/
Gluten-free products from website using their Filters. See Preferences in the left side bar - select Gluten-Free.
• HARVESTLAND® ORGANIC CHICKEN & APPLE SAUSAGE
• HARVESTLAND® ORGANIC GLUTEN FREE GRILLED CHICKEN BREAST STRIPS
• HARVESTLAND® ORGANIC ITALIAN STYLE CHICKEN SAUSAGE
• HARVESTLAND® ORGANIC SPINACH CHICKEN SAUSAGE
• INDIVIDUALLY FROZEN BONELESS, SKINLESS CHICKEN BREASTS (3 LBS.)
• SHORT CUTS® CARVED CHICKEN BREAST, GRILLED FAJITA STYLE (9 OZ.)
• SHORT CUTS® CARVED CHICKEN BREAST, ROTISSERIE SEASONED, (9 OZ.)
• SHORT CUTS® CARVED CHICKEN BREAST, GRILLED (9 OZ.)
• SHORT CUTS® CARVED CHICKEN BREAST, GRILLED FAJITA STYLE, (26 OZ.)
• SHORT CUTS® CARVED CHICKEN BREAST, GRILLED ITALIAN STYLE (9 OZ.)
• SHORT CUTS® CARVED CHICKEN BREAST, GRILLED, (16 OZ.)
• SHORT CUTS® CARVED CHICKEN BREAST, HONEY ROASTED (9 OZ.)
• SHORT CUTS® CARVED CHICKEN BREAST, ORIGINAL ROASTED (26 OZ.)
• SHORT CUTS® CARVED CHICKEN BREAST, ORIGINAL ROASTED (9 OZ.)
• SHORT CUTS® CARVED CHICKEN BREAST, SOUTHWESTERN STYLE (9 OZ.)
• SHORT CUTS® CARVED TURKEY BREAST, OVEN ROASTED (8 OZ.)
• SIMPLY SMART® BREADED CHICKEN BREAST TENDERS, GLUTEN FREE (22 OZ.), FROZEN
• SIMPLY SMART® GLUTEN FREE BREADED CHICKEN BREAST TENDERS (11.2 OZ.)
• SIMPLY SMART® LEMON AND HERB CHICKEN STRIPS (8 OZ.)
• SIMPLY SMART® LIGHTLY BREADED CHICKEN NUGGETS - GLUTEN FREE
Perdue has many GFCO Certified products. You can find them on GFCO's Certified Product List - January 2017 PDF Format
Should you have further questions, please feel free to contact a consumer representative at 1-800-473-7383 Monday through Friday 9:30 AM to 6:00 PM ET, or email us at www.Perdue.com.
http://plainvillefarms.com/faq/
Is your turkey gluten free?Yes, our turkey is gluten free and casein free. However, our turkey gravy and our homestyle dressing contain wheat. Our marinated teriyaki turkey tenderloins contain soy. Please read the ingredients labels.
Whole Turkeys:
Turkey Breast:
Frozen Hotel-Style Bone-In Turkey Breast
Hotel-Style Bone-In Turkey Breast
Bone-In Turkey Breast (3% Basted)
Bone-In Turkey Breast (0% Basted)
Hams
An extensive list of companies
https://www.verywell.com/gluten-free-ham-562432
Grain-Free for the Gluten-Free
At this stage of the game, you’ve probably heard about some type of low or no carb diet template. As the name suggests, these diets remove all grains - yes, even the gluten-free grains.

Hidden Danger of “Grain Free” Food Companies Don’t Want You to Know
by Jennifer Fugo of GlutenFreeSchool.com
Jennifer’s excellent article explores several facets - benefits and the hidden danger - of grain-free foods.
“Grain free is not (nor may ever be) a safe substitute for gluten free, nor is any sort of paleo certification labeling.“
Full Article: http://bit.ly/1mJMakK
Grain-free diets are known by several different names: Specific Carbohydrate Diet (SCD), Caveman, Ancestral, Paleolithic, Gut and Psychology Syndrome Diet (GAPS), Autoimmune Paleo Diet (AIP), Wheat Belly.
These diets tout a host of benefits that extend beyond a traditional gluten-free diet. Many members of the gluten-free community feel best when they’re grain-free as well.
By definition, grain-free should be gluten-free. “Gluten” is the generic name for the various proteins found in grains. You ditch the grains, you ditch the gluten. It’s a no-brainer! Um, not so fast Slick…
The purpose of this article is to make you aware of an important fact that is not always discussed by the proponents of grain-free diets.
Don't be lulled into a false sense of gluten-free safety by a grain-free food - even though it may be “Paleo Certified”. Sure, the food itself may be naturally gluten-free, but gluten-cross contamination could still be a threat. My concern is for those who may not know to be concerned about cross contact. The unknowing may wonder why they’re not feeling better while being grain-free due to gluten contamination.
Read more: http://bit.ly/1OQVXSN
Gluten contamination of grains, seeds, and flours in the United States: a pilot study - July 2010
Tricia Thompson, MS, RD, Ann Lee, EdD(c), RD, LD, and Thomas Grace
This study tested twenty-two single ingredient naturally gluten-free grains, seeds and flours.
“Gluten contamination of inherently gluten-free grains, seeds, and flours not labeled gluten-free is a legitimate concern.”
Almond flour, coconut flour, chick pea flour, flax seeds (whole or ground), whole nuts of all kinds, herbs, spices, and seasonings are some of the popular ingredients in many grain-free foods. Sure, those are all single ingredient foods - but if these foods are ground, processed, packaged on lines used for gluten containing foods, then the end product could have detrimental levels of gluten.
The bottom-line for those with gluten-related disorders who want to be grain-free - make sure your grain-free foods/ingredients are labeled or certified gluten-free.
Alan Klapperich
GIG of ECW Branch Manager