If you know that you react to added sulfites you also need to know exactly in which foods and drinks you might find those. Unfortunately sulfites are labeled in most cases only when the limits are over 10 ppm, which is considered safe amount for most people but not for you, if you have genetic Sulfite intolerance and your SUOX and CBS are mutated. Even trace amounts of added sulfites can make you react and sulfites will accumulate in the body if there are blocked metabolic pathways for SUOX/CBS.

Why sulfites are used in food and drinks? You can read more here.

This list might miss some of the foods/drinks which have added sulfites, but I try to keep this updated. I have also added the foods which only contain trace amounts of sulfites. These items with just trace amounts of sulfites seem to give a lot of issues for sulfite intolerant people, like citric acid and various other corn derived products.

Foods and drinks which might contain added sulfites:

• Appenzeller Cheese (Swiss made- cured in white wine)
• Baby formulas: with many ingredients which all can contain trace amounts of sulfites
• Baked products (this is extremely difficult category, since most commercially baked products might contain added sulfites, but when the amounts are under 10 ppm those are not labeled, so practically all baked goods: breads, cakes, cookies, muffins, pizza crusts, pie crusts etc. might contain added sulfites specially frozen baked goods. Gluten free products are an other category of baked goods where the use of hidden sulfites is high due to the use of various food starches.)
• Baking powder
• Beer
• Beet sugar (bleached with sulfites)
• Berries (dried)
• Cake mixes
• Cane sugar (when bleached)
• Candies with many ingredients which have trace amounts of sulfites
• Caramel color 150b, 150d
• Cereals
• Chinese herbs (also medical herbs)
• Ciders
• Coconut flakes, shredded coconut, (dried, white in color)
• Cocktail mixes, drink mixes
• Corned beef
• Corn flour, starch, sugars etc. Any corn-derived product can contain sulfites, since most corn is processed with sulfuric acid. Starches are bleached with sulfites etc. There are a lot of various sugars which can be made from processed corn; dextrin, maltodextrin, sorbitol, xylitol. Citric acid is one of the trigger ingredients for many sulfite sensitive people. It is made often from GMO corn with a specific mold.
• Crab meat (canned, fresh, frozen)
• Cream of tartar
• Fish (dried; COD, Asian dried fish, fresh fish when kept in sulfited ice, frozen fish fillets)
• Fish paste
• Food starches (arrowroot, corn-maize, potato, rice, tapioca, sweet potato, wheat etc)
• Fruit juices, made from all possible fruits and berries (concentrate, frozen)
• Fruits ( when canned,dehydrated, dried, frozen, glazed)
• Fruit sugar concentrates; Date syrup, Apple syrup, Pear syrup etc.
• Gelatin
• Glucomannan – various pasta items like noodles, spaghetti
• Granola bars
• Grape juice
• Grapes (fresh, glazed)
• Gravies
• Ground meat- also in some countries called as mince meat ( it is illegal to add sulfites to the fresh meat products, but this still happens)
• Guacamole
• Herbs  (dried, fresh)
• High fructose corn syrup
• Horseradish, paste
• Hot dogs
• Invert sugar
• Jams
• Jellies
• Ketchup
• Lemon/Lime juice (concentrate, frozen)
• Lobster  (canned, fresh, frozen)
• Malt extract
• Malt syrups
• Maple syrup
• Maraschino cherries
• Marmalade
• Mincemeat (here as chopped dried fruit, distilled spirits and spices- used in some countries)
• Molasses
• Muesli
• Mushrooms (canned, dried, fresh, frozen)
• Mustard
• Noodles (canned, dried, instant)
• Olives (canned, pickled)
• Onions (pickled)
• Pectin
• Peppers (canned, dried, pickled)
• Pickles vegetables, pickled anything
• Potatoes (dehydrated, frozen french fries, mashed, peeled, pre-cut)
• Potato products: chips, starch
• Prosecco (Italian sparkling wine)
• Raisins
• Ready made mixes to anything: cakes, puddings, soups etc.
• Relish
• Rice mixes
• Salt, with additives
• Sauces
• Sauerkraut
• Sausages
• Scallops (canned, fresh, frozen)
• Shellfish (canned, fresh, frozen)
• Shrimps (canned, fresh, frozen)
• Snack foods
• Sodas, soft drinks
• Soups, soup mixes ( canned, frozen, vacuum packed)
• Soy products
• Sparkling fruit juices, non alcoholic
• Sparkling wine
• Spices, spice mixes
• Sugar syrups made from fruits, grains etc. Brown rice syrup
• Tamarind paste
• Teas: instant, tea mixes ( tea bags might be also bleached with sulfites)
• Tomatoes (canned, dehydrated, dried, frozen, paste/pulp/puree, sun dried)
• Tortillas,  made with various flours: corn, wheat etc.
• Trail mixes
• Vegetable juices
• Vegetables (frozen- sulfites are added to the water which is sprayed to the vegetables prior freezing- this prevents them sticking into each others)
• Vinegar: wine vinegar, malt vinegar, rice vinegar etc.
• Waffles (frozen, mixes)
• Wasabi, paste (fresh Wasabi is safe and also rare- most cheap Japanese restaurants have only wasabi paste and that is made often with high fructose corn syrup and horseradish powder, and green colouring)
• Wine (red, white, dessert)
• Xanthan gum (corn-derived)
• Yeast extracts, yeast flakes