1980s. The Australian, British and Canadian armies also issue small bottles of Tabasco sauce in their rations. Uses McIlhenny Company produces Tabasco brand products that contain pepper seasoning, including popcorn, nuts, olives, mayonnaise, mustard, steak sauce, Worcestershire sauce, soy sauce, teriyaki sauce, marinating sauce, barbecue sauce, chili sauce, pepper jelly, and Bloody Mary mix. McIlhenny Company also permits other brands to use and advertise Tabasco sauce as an ingredient in their products (a common marketing practice called "co-branding"), including Spam, Hormel chili, Slim Jim beef sticks, Heinz ketchup, A1 steak sauce, Plochman's mustard, Lawry's salt, Zapp's potato chips, Heluva Good dip, and Vlasic Pickles. Cheez-It crackers for a long time used McIlhenny's Tabasco Green Pepper Sauce until 2018, when Kellogg's replaced it with their own hot sauce. The original red Tabasco sauce has a shelf life of five years when stored in a cool and dry place; other Tabasco flavors have shorter shelf lives. Tabasco appeared on the menu of NASA's Space Shuttle program and went into orbit on the Shuttles. It was on Skylab and on the International Space Station and is popular with astronauts as a means of countering the blandness of food in space. Cookbooks During the Vietnam War, Brigadier General Walter S. McIlhenny issued The Charlie Ration Cookbook. (Charlie ration or "C-Rats" was the name for the field meal then given to troops.) This cookbook came wrapped around a two-ounce bottle of Tabasco sauce in a camouflaged, water-resistant container. It instructed troops how to mix C-rations to make such meals as "Combat Canapés" or "Breast of Chicken under Bullets." Soldiers also requested their families to send them Tabasco sauce in "care packages" from home. During the 1980s, the U.S. military began to include miniature bottles of Tabasco sauce in its MREs. Eventually, miniature bottles of Tabasco sauce were included in two-thirds of all MRE menus. During the same period, McIlhenny Company issued a new military-oriented cookbook using characters from the comic strip Beetle Bailey. Titled The Unofficial MRE Cookbook, it was offered free of charge to U.S. troops. Toxicity In a 1982 article titled "Pepper Sauce Toxicity" Tabasco pepper sauce's toxicity was evaluated based on red peppers and vinegar. Sprague-Dawley rats (lab rats) were tested on. The oral median lethal dose in male lab rats was determined to be 23.58 mL/kg body weight (BW) with an upper limit of 29.75 mL/kg BW and a lower limit