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The Molecular Secrets of Cream Cheese

Roland Piquepaille writes "The June issue of Wired Magazine carries a story about one of the two university labs in the U.S. dedicated to cream cheese research. This one is -- where else? -- in Madison, Wisconsin, where researchers are exploring the molecular mysteries of cream cheese. You may not know, but this cheese is tricky to produce because the acid-secreting bacteria used to coagulate the milk need to be killed at the right time. The researchers are now writing a guidebook about the secrets of cream cheese, a book which will be available to anyone, in a process similar to the open source movement for software. For more information, please read the entertaining article of Wired magazine, 'Schmear Campaign' or this summary to discover little-known facts about cream cheese."

7 of 211 comments (clear)

  1. Re:Wonderful by thc69 · · Score: 5, Funny

    Perhaps they will investigate the phenomena whereby cream cheese is the exact opposite of expresso. I once tried an expresso, about ten years ago, at Barnes & Noble. Immediately, I set out on a mission to locate some cream cheese. Tragically, I went cream-cheese-less...but I really could have eaten a whole package of it, and it would have made my mouth feel much better.

    --
    Procrastination -- because good things come to those who wait.
  2. Re:Wonderful by kfg · · Score: 5, Funny

    Obviously they either need to cut funding for this project, or balance it by adding funding for a project to investigate the molecular secrets of lox.

    We cannot have a cream cheese/lox molecular secrets gap at taxpayer expense.

    KFG

  3. Re:Wonderful by MustardMan · · Score: 5, Insightful

    Yeah, because, you know, no one ever discovered anything truly revolutionary to the scientific world while working on "mundane" things.

    What sets us apart from the apes is our drive to seek knowledge purely for the sake of knowing it. What sets the US apart from many other nations is our willingness to fund science in all its forms, whether or not a given research projects produces something whose value can be measured in dollars and cents.

  4. As a former Wisconsonite... by daeg · · Score: 5, Interesting

    As a former resident of Wisconsin, cheese is big business. Huge, in fact. Government grants for cheese and other dairy research are nothing new to the University of Wisconsin. Sure, it might appear like a drain on money, but by doing the research in a public setting it benefits all dairy producers whereas private research only benefits the company or co-op sponsoring it. To justify it all you have to do is imagine the tax benefits of even a few percentage points of additional dairy production.

    Besides, I back all agricultural research. Food will become the next major world commodity (aside from fuel). It's easy to make potable water, but trying to compensate year after year of lackluster arable ground is foolish. The United States is one, if not the, top contender for arable land and our rank will only increase as the floodplains of the Asian countries are flooded with ocean water with rising sea levels. Seven billion people have to eat somehow.

  5. mmm by cptgrudge · · Score: 5, Funny
    It's not easy to extract a large plastic syringe that's submerged in a tub of very firm cream cheese, but Mercedes Brighenti performs the task with elegance and precision. The sleeves of her white lab coat are rolled up, her long dark hair is pulled back, and her silver watch is pushed up on her slender arm. Still, the final tug flings little globs of cheese around the university lab - one of only two in the US with a cream cheese research program.

    I'm think I'm in love.

    --
    Qualitas edurus commercium, nullus penitus net rimor, nullus deus beneficium
  6. I grew up near Kraft... by ruiner13 · · Score: 5, Interesting

    I am from Glenview, Illinois, where Kraft has their HQ. They have a nice R&D plant right in the middle of town, and one time, when I was growing up (I was maybe 11 or 12), my friends and I took a little hike through the wooded area behind it. There was a large storm drain coming out of the plant that led into the North Branch of the Chicago River. What startled my friends and me was the presence of a few guys in biohazard suits scribbing the walls of it off with a high-pressure hose of some kind. Whatever the secret ingredient is for their cream cheese, I hope it doesn't produce whatever they were scrubbing down!

    --

    today is spelling optional day.

  7. Old Fashion Organic Cream Cheese by FosterSJC · · Score: 5, Informative
    Carlton Yoder, of Champlain Valley Creamery, makes one of America's only stabilizer- and gum-free cream cheeses. You can learn about his products and creamery from his website at http://www.cvcream.com/, and buy the cream cheese here. He is a very enthusiastic proponent of sustainable agriculture, in Vermont.

    The texture of Old Fashion Organic Cream Cheese is similar to fresh goat cheese, but with more creaminess and without that distinct goats milk flavor. Because we dont stabilize the cheese with any sort of gums (carob bean, xanthan, etc), the cheese may separate. The liquid is simply whey, just stir it up and enjoy! The cheese is best in the first week after its made, but it will last 4 weeks in your fridge.


    On the subject of cheese, the distinctions between things like soured, curdled milk, sour cream, cream cheese, mascarpone, and full-fledged cheese are myriad and arcane. I wrote a quick blurb for a friend, explaining what cheese exactly is. I have attached it below, for your perusal. IAACE (I am a cheese expert)...

    Cheese is a rather general term describing curdled milk (or cream). To curdle milk means to separate the whey from the curds. Milk proteins (casein) are ostensibly broken in half. One half precipitates out of the milk, becoming a solid (the curds). The other half remains liquid (the whey), though it ceases to be white. The distinction between true cheese and things like cream cheese, sour cream, mascarpone, creme fraiche, etc. is the way in which the milk is curdled.

    Milk can be curdled either by acid and/or by rennet. To be considered a true cheese (e.g. cheddar, swiss, brie, et. al.), acid AND rennet coagulation (i.e. curdling) is required. First, a culture is added to the milk (or is already present in the milk in the case of some raw milk cheeses). This culture "ferments" the milk, slowly lowering the pH (raising the acidity) of the milk.
    Then, rennet is added - this is an enzyme derived from the fourth stomach chamber of an unweaned ruminant animal (e.g. a calf, kid, or lamb). This enzyme literally breaks apart the proteins in the milk, an action facilitated by the presence of acid (and heat), and separates the milk into curds and whey. The whey is poured off (either to make ricotta, or to feed to hogs). The curds are then cut, releasing more whey, drained, and molded (this is a gross simplification - most of the textural variations in cheese stem from this process). At this point, the curds have become cheese.

    False cheeses like creme fraiche, mascarpone, sour cream, etc. are curdled very lightly and without the use of rennet. The acid required can be produced by natural or added bacteria, vinegar, lemon juice, etc. The variations in the acid-curdled "cheeses" come from the extent of acidification, coagulation, variations in fat content, types of cultures, etc. For example, creme fraiche is cream (thus, high in fat) that is lightly coagulated (lower acidity). Sour cream is cream that is more heavily coagulated. This slight difference in acidity and cultures will cause sour cream to fully curdle (i.e. turn chunky) when boiled, whereas creme fraiche will not.

    The diversity and complexity of cheesemaking processes is overwhelming. I hope this helps to illustrate (if not simplify) the breadth of the cheese world.