Food Production and Service Practices to Reduce Gluten Exposure in Celiac Disease

Abstract

Approximately 13% of Americans report following a gluten-restricted diet, driven in part by dietary restrictions resulting from increased rates of celiac disease and other gluten sensitivities. Regulations for labeling gluten-free foods, defined by WHO/FAO Codex Alimentarius Commission, specify a limit of 20 parts per million (ppm) of gluten; however, some individuals react to levels below this threshold. Noticeable knowledge gaps exist among artisanal bakers in Colorado regarding gluten as an allergen-like protein, celiac disease, and the risks of cross-contact in gluten-free food production. This study investigated production practices and potential gluten cross-contact in gluten-free baked goods from establishments across the Front Range. Establishments were observed for adherence to safe food handling practices. To determine whether samples met legal requirements for gluten-free labeling, gluten content was measured using the RIDASCREEN® Gliadin kit and absorbance was quantified via UV-Vis spectrophotometry. Establishments visited include cafés, bakeries, and restaurants. Preparation and handling practices varied, and more than half of samples were served from shared storage cases. Four samples contained gluten, yet all fell below the legal limit of detection. Of these, three originated from facilities where food debris on surfaces and inconsistent handling practices were observed. The absence of standardized protocols and testing requirements poses a challenge for consumers seeking confidence that products labeled “gluten-free” are truly safe. This study highlights the need for greater standardization among gluten-free food producers and provides educational materials for both producers and consumers on safe production and handling practices, along with recommendations for improving current procedures.