However, the predecessor to this type of instant gelatin was calves' foot jelly. Even the gelatin (such as Jell-O) of today, is still made with parts of the feet of cow/pig and sometime chicken.It is a protein produced from collagen extracted from the boiled bones, connective tissues, and intestines of animals. Its taste and wholesomeness is a far cry from our Victorian Sister’s version. Theirs contained carful boiling of whole split feet, while ours is hoof scrapings and mainly by-product of the leather industry.
Even in the Victorian times, one could buy sheets of gelatin, rather than boil down feet to derive it. However, it needed to be boiled down and purified and was expensive and therefore more used by the wealthy. The act of boiling the feet down, skimming the top of fat and letting it set, was all that was required to create gelatin from scratch.
In 1845 the American Industrialist patented a powdered form of gelatin, but had trouble marketing it. It was subsequently sold a few times and during the early 1900’s ads were placed in Ladies Home Journals describing it as “America’s Famous Dessert”, though it was not, and sales were still rather low.
Then Genesee Food company, who now owned it, sent out en masse salesmen and door to door free booklets and samples. By the late 1920’s they began adding fruit flavors like cherry and even chocolate (where before it was simply the solidifying agent to which you added your flavoring) and it took off.
By 1930, there appeared a vogue in American cuisine for congealed salads, and the company introduced lime-flavored Jell-O to complement the various add-ins that cooks across the U.S. were combining in these aspics and salads. By the 1950s, these salads would become so popular that Jell-O responded with savory and vegetable flavors such as celery, Italian, mixed vegetable and seasoned tomato. These savory flavors have since been discontinued.
In 1934, sponsorship from Jell-O made comedian Jack Benny the dessert's spokesperson. At this time also was introduced a jingle (created by the agency Young & Rubicam) that would be familiar over the next several decades, in which the spelling "J-E-L-L-O" was (or could be) sung over a rising five-note musical theme.
Therefore, next year 1934, Jell-O will become an everyday part of the homemakers life.
A bit more about how gelatin was once made. The key component in gelatin is collagen (a protein found mainly in connective tissue, in which feet abound.) Collagen makes meat tough, but it also makes the same cut, after stewing, silky and rich. That is why if one were to boil chicken’s feet in the making of their soup, they will find it has extra body and taste. Therefore, collagen that is hot will impart richness to dishes while when it is chilled, it turns to gelatin.
This link HERE will take you to a great old British recipe to make your own calves foot jelly. Caster sugar, for we American’s, can be harder to come by. It is sometimes sold in small boxes at larger grocers. If is not as fine as our powdered or confectioners sugar. So, you can make your own by simply taking normal grained sugar and putting it in a food processor or electric coffee grinder. If not, you can use regular sugar, only it will take a bit longer to dissolve.
The mass production of gelatin today is not made of these nicer connective tissues and are, as I stated, mainly a by-product of the leather and meat industry. Here is a chart of the make up of modern gelatin 
Besides Jell-O and other powdered forms of dessert, Gelatin is used in many things on the market. Low-fat yogurts, marshmallows, candy-corn, jams, cream cheese, and margarine to name a few. It is used in almost all ‘low-fat’ foods to give the product the ‘feel’ of the fat that is not actually used. It is also used in the clarifying of fruit juices. And in prescription drugs and vitamins, the plastic type gel-caps are made of this same commercial grade gelatin.
As I discovered what goes into modern gelatin, which is used in many more things than Jell-O, I had to laugh at people who are squeamish about ‘old recipes’. To many the idea of using the collagen boiled out of an actual calves foot as a base for food is disgusting. Yet, the literal floor scrapings of the modern gelatin production seems to me to be far more likely to contain unknown agents. And the flavor is not there with the contents of modern gelatin production that a slow boil of wholesome and whole food would produce.
But, here in 1933 we do have pre-packaged powdered gelatin. I have a feeling its production is a bit more ‘whole’ than it is today. And it is readily available and still prized by homemakers. We must remember the rainbow colored overly sugared versions that become the laughable memories of today that once graced the tables of the late 50’s into the 1970’s have not as yet been invented. Today in 1933 the idea of an aspic or a jellied savory or dessert is still a prized showpiece for the homemaker’s table.
So, here is an article with some recipes from my 1930’s Hostess Handbook. Click image to read full size.
Knox and Jell-O were both readily available and here we see the cover of a book I might have had in my kitchen library.
Let me close with a Jack Benny radio program from 1938 for Easter. It is sponsored by Jell-O and you can hear the advertising as well as the funny Jack Benny program. Enjoy it!
Any way you slice it, and I mean that quite literally, gelatin has been around for awhile. And the mass produced easy form is very much a part of the homemakers kitchen here in 1933 as it will increasingly become by 1955. I need to try and make more gelatin inspired dishes. Have you any favorites or are you put off by the wobbly form of food?
Happy Homemaking.
