Usually, for delicatessen and bacons, there's risk of contamination with rye, oats, wheat, barley, triticale or with one of these derivatives that contains gluten. Since bacon can contains aroma, it's possible to find traces of gluten in these substances. Then, we should verify with the retailers. Research a products which the package says gluten free.
Beer, made with fermentation of barley, contains gluten. To make gluten free beer, we have to change the cereal use in the preparation. This is why rice and buckwheat beer does not contain gluten. On the market, there are some gluten free beer, blond's are particularly indicated in culinary preparations.