By the early 20th century, waffle recipes became rare in recipe books, and only 29 professional waffle craftsmen, the oublieurs, remained in Paris. Waffles were shifting from a predominately street-vendor-based product to an increasingly homemade product, aided by the 1918 introduction of GE's first electric commercial waffle maker. By the mid-1930s, dry pancake/waffle mix had been marketed by a number of companies, including Aunt Jemima, Bisquick, and a team of three brothers from San Jose, Calif. – the Dorsas. It is the Dorsas who would go on to innovate commercial production of frozen waffles, which they began selling under the name "Eggo" in 1953. Manufacturers are now testing the production of waffles with potato starch, which increase the stability of the waffle and protect them from sticking to the iron.
Manning-Bowman made an earlier version of the "Twin" called the "Twinover" that only had the thermometer. Because the "Twinover" is earlier, it may be a bit more valuable than the "Twin-O-Matic", but it lacks the convenience of the Thermostat. If you are an investor, go for the "Twinover" because it is older and rarer. If you want waffles, go for the "Twin-O-Matic." The trunion base is interchangeable between the two models, so it is possible that you might find a Twinover "iron" on a "Twin-O-Matic" trunion (or vice versa) This would most likely lower the value of the combined object. SO -- if you are buying one of these by mail or through an internet auction, please be sure to ask whether the trunion base matches the iron.
While this Cuisinart is undoubtedly a top performer at a great price point, it does only cook one waffle at a time, and the Wirecutter editors point out that it's not as sturdily built as some of the competition -- a point echoed by many users. That may make this waffle iron best for either small groups or occasional waffle-making. That said, Cuisinart offers a three-year warranty -- right up there with some pro-level appliances that cost six times as much. The Cuisinart WMR-CA is also versatile, with users saying it's even great for making foods like hash browns, bacon and potato cakes.