Tuesday, May 30, 2023

The Composition of Ice Cream

Ice cream is a colloidal emulsion made with water, ice, milk fat, milk protein, sugar and air. Water and fat have the highest proportions by weight creating an emulsion that has dispersed phase as fat globules. The emulsion is turned into foam by incorporating air cells which are frozen to form dispersed ice cells. The triacylglycerols in fat are non polar and will adhere to themselves by Van der Waals interactions. Water is polar, thus emulsifiers are needed for dispersion of fat. Also ice cream has a colloidal phase of foam which helps in its light texture. Milk proteins such as casein and whey protein present in ice cream are amphiphilic, can adsorb water and form micelles which will contribute to its consistency. The proteins contribute to the emulsification, aeration and texture. Sucrose which is disaccharide is usually used as a sweetening agent. Lactose which is sugar present in milk will cause freezing point depression. Thus, on freezing some water will remain unfrozen and will not give a hard texture. Too much lactose will result in a non ideal texture because of either excessive freezing point depression or lactose crystallization.

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Saturday, May 27, 2023

How Ice Cream Is Made By Modern Technology | Ice Cream Factory Process


How do they make ice cream? It is one of a short video in a series of short, concise videos that reveal the mysteries behind how everyday things happen.

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Wednesday, May 24, 2023

Ice Cream History : Expansion in Popularity

In the Mediterranean, ice cream appears to have been accessible to ordinary people by the mid-eighteenth century. Ice cream became popular and inexpensive in England in the mid-nineteenth century, when Swiss émigré Carlo Gatti set up the first stand outside Charing Cross station in 1851. He sold scoops in shells for one penny. Prior to this, ice cream was an expensive treat confined to those with access to an ice house. Gatti built an 'ice well' to store ice that he cut from Regent's Canal under a contract with the Regent's Canal Company. By 1860, he expanded the business and began importing ice on a large scale from Norway.

In New Zealand, a newspaper advertisement for ice cream appeared in 1866, claiming to be the first time ice cream was available in Wellington. Commercial manufacturing was underway in 1875. Ice cream rapidly gained in popularity in New Zealand throughout the 20th century. By 2018, exported ice cream products included new flavors such as "matcha" to cater specifically to Asian markets.

Agnes Marshall, regarded as the "queen of ices" in England, did much to popularize ice cream recipes and make its consumption into a fashionable middle-class pursuit. She wrote four books: The Book of Ices (1885), Mrs. A.B. Marshall's Book of Cookery (1888), Mrs. A.B. Marshall's Larger Cookery Book of Extra Recipes (1891) and Fancy Ices (1894) and gave public lectures on cooking. She even suggested using liquid nitrogen to make ice cream.

Ice cream soda was invented in the 1870s, adding to ice cream's popularity. The invention of this cold treat is attributed to American Robert Green in 1874, although there is no conclusive evidence to prove his claim. The ice cream sundae originated in the late 19th century. Several men claimed to have created the first sundae, but there is no conclusive evidence to support any of their stories. Some sources say that the sundae was invented to circumvent blue laws, which forbade serving sodas on Sunday. Towns claiming to be the birthplace of the sundae include Buffalo, Two Rivers, Ithaca, and Evanston. Both the ice cream cone and banana split became popular in the early 20th century.

The first mention of the cone being used as an edible receptacle for the ice cream is in Mrs. A.B. Marshall's Book of Cookery of 1888. Her recipe for "Cornet with Cream" said that "the cornets were made with almonds and baked in the oven, not pressed between irons". The ice cream cone was popularized in the US at the 1904 World's Fair in St. Louis, Missouri.

The history of ice cream in the 20th century is one of great change and increases in availability and popularity. In the United States in the early 20th century, the ice cream soda was a popular treat at the soda shop, the soda fountain, and the ice cream parlor. During the American Prohibition, the soda fountain to some extent replaced the outlawed alcohol establishments such as bars and saloons.

Ice cream became popular throughout the world in the second half of the 20th century after cheap refrigeration became common. There was an explosion of ice cream stores and of flavours and types. Vendors often competed on the basis of variety: Howard Johnson's restaurants advertised "a world of 28 flavors", and Baskin-Robbins made its 31 flavors ("one for every day of the month") the cornerstone of its marketing strategy (the company now boasts that it has developed over 1000 varieties).

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Sunday, May 21, 2023

Ice Cream History : North America

An early North American reference to ice cream is from 1744: "Among the rarities..was some fine ice cream, which, with the strawberries and milk, eat most deliciously." It was served by the lady of Governor Bland.

Quaker colonists introduced ice cream to the United States, bringing their ice cream recipes with them. Confectioners sold ice cream at their shops in New York and other cities during the colonial era. Ben Franklin, George Washington, and Thomas Jefferson were known to have regularly eaten and served ice cream. Records, kept by a merchant from Catham street, New York, show George Washington spending approximately $200 on ice cream in the summer of 1790. The same records show president Thomas Jefferson having an 18-step recipe for ice cream. First Lady Dolley Madison, wife of U.S. President James Madison, served ice cream at her husband's Inaugural Ball in 1813.

Small-scale hand-cranked ice cream freezers were invented in England by Agnes Marshall and in America by Nancy Johnson in the 1840s.

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Thursday, May 18, 2023

Warm Cookies Are Served By The Bucket


Sweet Martha's is a popular stand at the Minnesota State Fair, so much so they bake one million cookies a day!

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Sunday, May 14, 2023

Happy Mother's Day!


Happy Mother's Day!

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Friday, May 12, 2023

Ice Cream History : England

The first recorded mention of ice cream in England was in 1671. Elias Ashmole described the dishes served at the Feast of St George at Windsor in for Charles II in 1671 and included 'one plate of ice cream'. The only table at the banquet with ice cream on it was that of the King. The first recipe for ice cream in English was published in Mrs. Mary Eales's Receipts, a book dedicated to confectionary, in London in 1718.

To ice cream.

Take Tin Ice-Pots, fill them with any Sort of Cream you like, either plain or sweeten’d, or Fruit in it; shut your Pots very close; to six Pots you must allow eighteen or twenty Pound of Ice, breaking the Ice very small; there will be some great Pieces, which lay at the Bottom and Top: You must have a Pail, and lay some Straw at the Bottom; then lay in your Ice, and put in amongst it a Pound of Bay-Salt; set in your Pots of Cream, and lay Ice and Salt between every Pot, that they may not touch; but the Ice must lie round them on every Side; lay a good deal of Ice on the Top, cover the Pail with Straw, set it in a Cellar where no Sun or Light comes, it will be froze in four Hours, but it may stand longer; then take it out just as you use it; hold it in your Hand and it will slip out. When you wou’d freeze any Sort of Fruit, either Cherries, Raspberries, Currants, or Strawberries, fill your Tin-Pots with the Fruit, but as hollow as you can; put to them Lemmonade, made with Spring-Water and Lemmon-Juice sweeten’d; put enough in the Pots to make the Fruit hang together, and put them in Ice as you do Cream.

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