Why Does Milk Curdle When It Goes Bad?

แชร์
ฝัง
  • เผยแพร่เมื่อ 4 ม.ค. 2025

ความคิดเห็น • 96

  • @sergioalexandercruz4028
    @sergioalexandercruz4028 4 ปีที่แล้ว +5

    I’ve been making pasta for a few years now and 2 or 3 times I’ve made lasagna sheets that fall apart instantly when hitting the water. I couldn’t figure out why it was happening. I speculated that a coworker maybe filled the flour bins with the wrong flour (pasta,pizza,bread,ap). I’d love to see an episode on the science of pasta. How it holds up, why it can fall apart and the reasons they’re different shapes. Could be helpful to a lot of people

    • @patrickmcdaniel2048
      @patrickmcdaniel2048 3 ปีที่แล้ว

      I remember having the same problem at one of the restaurants I worked at where we made fresh pasta. We made the pasta using only semolina and water. Check the water temperature in your mix for consistency.

  • @yuwerlyk8506
    @yuwerlyk8506 6 ปีที่แล้ว +6

    I drank some milk today, and its not outdated! it goes out in like november (its august) and it had small, small chunks in it... now im worried.. because i drank it 😅
    (The milk is a special milk that doesn't go outdated before a few months. i also had it in the fridge)

  • @pratofundo
    @pratofundo 9 ปีที่แล้ว +8

    "Anakin Skywalker, your relationships" hahahahah Well, at least fermentation produce good foods, hahahah

    • @BrainStuffShow
      @BrainStuffShow  9 ปีที่แล้ว +4

      +PratoFundo Fermentation creates basically all my favorite foods. /Lauren

    • @david09baz
      @david09baz 4 ปีที่แล้ว

      BrainStuff - HowStuffWorks OMG YOU COMMENTED SOO COOL!! Hello! Please reply.

  • @CharlesAlvear
    @CharlesAlvear 9 ปีที่แล้ว

    I love Lauren's videos the best and not just because I'm secretly in love with her...I just love her presentation style, speaking pace, and voice tone. Another great video! More Lauren! :)

  • @briandaviskit77
    @briandaviskit77 9 ปีที่แล้ว +4

    love your videos im hooked. thanks for the education

  • @jitrulz1
    @jitrulz1 9 ปีที่แล้ว +1

    why does milk boil with froth for the first time and later, after 2-3 boils, it never comes up to the level of spilling ?

  • @abetterme1238
    @abetterme1238 6 ปีที่แล้ว +1

    Does baking soda stop milk from clumping, if so could you keep the milk outside the refrigerator?

  • @Mark-sy2bx
    @Mark-sy2bx 2 ปีที่แล้ว

    I just drank a carton of milk that curdled, nothing happened to me. The first day I just drank the clumps. The rest I filtered the big clumps. It had no smell or bad taste and that's why i drank it.

  • @nickcastaneda203
    @nickcastaneda203 7 ปีที่แล้ว +2

    "Poop in general is interesting."

  • @srlynn90
    @srlynn90 6 ปีที่แล้ว +2

    This answered alot my questions to the conversion of milk to cheese. Thank you! Can you do an extended version of this video on the whole conversion of cheese to milk?

  • @SolarScion
    @SolarScion 4 ปีที่แล้ว

    I came here hoping to see why it works equally in plant and animal milks. I suspected it had to do with positive and negative ionic interactions, so that was neat, but I'm still not sure if it counts as an emulsion and that the process is the same since lactic acid shouldn't be a part of it AFAIK.

  • @lighthead6275
    @lighthead6275 8 ปีที่แล้ว

    If curds and whey are left when lacto bacilli is present, where is the lactic acid and how do you separate it?

  • @sabrinawang302
    @sabrinawang302 8 ปีที่แล้ว +2

    thank u so much! very informative :))

  • @TUSHXR1
    @TUSHXR1 7 ปีที่แล้ว +7

    so what's the difference between yougurt and rotten milk?? both are caused by bacteria right ?? ..plz elaborate..thanks.

    • @PianoRootsMusic
      @PianoRootsMusic 7 ปีที่แล้ว +4

      yogourt has specific bacteria that are good for you, but rotten milk is filled with a bunch of random, potentially harmful bacteria

  • @florescudamian2427
    @florescudamian2427 9 ปีที่แล้ว

    BrainStuff please make an episode with "Why people like evil thinks and thoughts " i mean really. All of us enjoy being bad and evil, feel that power hunger. What make us feel so good when we do evil thinks?

  • @padraicloingsigh421
    @padraicloingsigh421 6 ปีที่แล้ว

    Curdled milk is not bad food, bovine mammary secretions are for bovines, not human food.

  • @towlie911
    @towlie911 9 ปีที่แล้ว +12

    Thanks for all this useless knowledge birdtree, it really helps me procrastinate

    • @benjadoo
      @benjadoo 6 ปีที่แล้ว

      lmao

    • @nona8009
      @nona8009 6 ปีที่แล้ว

      Actually this was so helpful

  • @RishabhKumarenetuser
    @RishabhKumarenetuser 9 ปีที่แล้ว

    is that micelles similar to that soap micelles?

  • @UHFStation1
    @UHFStation1 ปีที่แล้ว

    Does lactose free milk not curdle?

  • @NLENDERDRAGONS
    @NLENDERDRAGONS 9 ปีที่แล้ว +6

    Milk and Cereal, Milk and Cereal, Milk and Cereal, Cereal and Milk

  • @durgapradhan7032
    @durgapradhan7032 4 ปีที่แล้ว

    My 10 litre milkes always crudles.what to do.i am in huge lost.save me.give me a suggestion

  • @uniquethequeens6547
    @uniquethequeens6547 6 ปีที่แล้ว +1

    I will never look at milk the same again😧

  • @Stephenjo101
    @Stephenjo101 9 ปีที่แล้ว

    What's the noise made when you "crack" your neck?

    • @BrainStuffShow
      @BrainStuffShow  9 ปีที่แล้ว

      +stephen johnson Good question! It's probably the sound of a tiny air bubble forming inside the fluid in the joint, created when you stretch the joint by moving your neck. It'd make an awesome video -- thanks for asking! Here's a report on knuckle cracking in the meanwhile: www.npr.org/sections/health-shots/2015/04/15/399636388/why-knuckles-crack

  • @ehmcheng
    @ehmcheng 8 ปีที่แล้ว +1

    so why can you eat yogurt but not curdled milk

    • @maanyavgangaraj8624
      @maanyavgangaraj8624 8 ปีที่แล้ว

      yogurt has a lot more stuff in itthat curdled milk.

  • @david09baz
    @david09baz 4 ปีที่แล้ว

    *God has entered the chat*
    God: Brainstuff, if you reply, you shall be granted 500 years of life.
    *God has left the chat*

  • @schiBe420
    @schiBe420 8 หลายเดือนก่อน

    Why the fuck is everyone scared of eating curd, lassi is made from the same thing. Stop drinking mango lassi then!

  • @farrukhdada6688
    @farrukhdada6688 9 ปีที่แล้ว +1

    i thought you were Lee Ann Mcadoo at first.

  • @brokebassoon
    @brokebassoon 9 ปีที่แล้ว

    Isn't milk an emulsion due to the homogenization process? In unhomogenized milk, the cream (the part with all the fat) rises to the top.

    • @filkz4530
      @filkz4530 8 ปีที่แล้ว

      Maybe it's both

  • @gfetco
    @gfetco 9 ปีที่แล้ว

    Milk has officially gone bad.

  • @youngboon1
    @youngboon1 9 ปีที่แล้ว

    safe to drink curdle milk as yoghurt?

    • @BrainStuffShow
      @BrainStuffShow  9 ปีที่แล้ว

      +Youngboon Lim Yes! Controlled versions of curdling create completely safe food products like yogurt and cheese.

    • @youngboon1
      @youngboon1 9 ปีที่แล้ว +1

      BrainStuff - HowStuffWorks​sorry no I mean, drinking overnight milk is it safe

    • @suharsh96
      @suharsh96 9 ปีที่แล้ว

      +BrainStuff - HowStuffWorks what about the milk that got curdled by itself ? is it safe to consume?

    • @suharsh96
      @suharsh96 9 ปีที่แล้ว

      +BrainStuff - HowStuffWorks what about the milk that got curdled by itself ? is it safe to consume?

  • @afstar101
    @afstar101 9 ปีที่แล้ว +7

    you guys are gr8 and your videos too bt you shld change your background image and music like seriously :)

  • @lm_8480
    @lm_8480 9 ปีที่แล้ว

    why does almond milk go bad after 7 days

    • @gavinb2
      @gavinb2 9 ปีที่แล้ว +4

      It definitely does not

  • @wahoo124fromsoda3
    @wahoo124fromsoda3 ปีที่แล้ว

    I came here because of the term “blood-curdling” from Inside Edition 🤪

  • @kurtyania6075
    @kurtyania6075 5 ปีที่แล้ว

    I just looked down at my cereal and it has curds in it.......

  • @oxiechan
    @oxiechan 6 ปีที่แล้ว +1

    i was eating!!!!! my apple... omg

  • @InderjitSingh12
    @InderjitSingh12 9 ปีที่แล้ว

    in northern india and pak people do the control version to make yogurt

  • @troyadamson8618
    @troyadamson8618 5 ปีที่แล้ว

    I just poured out today a half gallon of milk, that was six months old that did not go sour. Did not clump nor stink. No odor at all, poured just like the day I bought it. What gives?

  • @raydredX
    @raydredX 9 ปีที่แล้ว

    If they're negatively charged it makes sense they force themselves to be well distributed. But why would they clump when they're neutral? Clumping seems to imply attraction, why are neutral mycelles attracted to each other?

    • @BrainStuffShow
      @BrainStuffShow  9 ปีที่แล้ว +2

      +raydredX Even though they don't have a charge, the outside layer of the micelles are still hydrophobic. So when they happen to run into each other via the entropy of the milk system, they latch onto each other. It's not as strong a force as charged attraction. That make sense? /Lauren

    • @raydredX
      @raydredX 9 ปีที่แล้ว

      +BrainStuff - HowStuffWorks
      Thank you so much for the reply!
      Hydrophobic implies it's not attracted to water. (if it meant it repelled that would be enough to explain it)
      So why does the entropy favor them latching together?

    • @yuwerlyk8506
      @yuwerlyk8506 6 ปีที่แล้ว

      +BrainStuff- HowStuffWorks
      Wait... So its not dangerous to drink it? with clumps in it? because my milk is not outdated and it already had small, small chunks in it. But the chunks are not like CHUNKS, they are just small pieces.. :O And i kind of drank it so...

  • @jeffnamw1623
    @jeffnamw1623 5 ปีที่แล้ว

    Now i can make cheese

  • @aajjeee
    @aajjeee 9 ปีที่แล้ว

    why did i watch this video? i probably could have explained it better

    • @BrainStuffShow
      @BrainStuffShow  9 ปีที่แล้ว +1

      +aajjeee If you make your own video about the topic, we'd love to see it! ^__^

    • @aajjeee
      @aajjeee 9 ปีที่แล้ว

      BrainStuff - HowStuffWorks i mean this figuratively, im a chemist so it was pretty obvious for me.

    • @aajjeee
      @aajjeee 9 ปีที่แล้ว

      i dont technically have a bac yet but its just chemistry, you dont need biochemistry to know that polar and non polar liquids dont mix, or that this is what milk is, as for lactic acid, you can already know it because of the ''vinegar'' smell of sour milk

    • @aajjeee
      @aajjeee 9 ปีที่แล้ว

      its true i didnt know the barteria was already in the grass before the cow ate it, which is a nice addition

  • @dontbeweirdrj1805
    @dontbeweirdrj1805 7 ปีที่แล้ว

    moldy, stinky milky! Let's Goooo!!

  • @robertmyers8168
    @robertmyers8168 8 ปีที่แล้ว

    well milk doesnt go bad its just turning into cheese

    • @nona8009
      @nona8009 6 ปีที่แล้ว

      Robert Myers lol😂😂

  • @MurtezaAFG
    @MurtezaAFG 9 ปีที่แล้ว

    that's just yogurt floating to the top. just eat it.

    • @cookiesncream789
      @cookiesncream789 9 ปีที่แล้ว +1

      Why don't you try it first and then report back to us? 😃

    • @MurtezaAFG
      @MurtezaAFG 9 ปีที่แล้ว

      I'm lactose intolerant ;P But trust me, just eat it.

  • @CiderDivider
    @CiderDivider 9 ปีที่แล้ว

    So what causes the milk to curtle when put in a paralyzer? Is it the coke? The alcohol? Is it still safe to drink at that point?

    • @MartijnCoppoolse
      @MartijnCoppoolse 9 ปีที่แล้ว

      A "paralyzer"? What's that? It sounds like coke with some kind of alcoholic beverage...

    • @CiderDivider
      @CiderDivider 9 ปีที่แล้ว +2

      +Martijn Coppoolse It's an alcoholic beverage made with coffee liqueur, (typically) vodka, coke and a splash of milk. Sounds kind of gross, but the flavour is lightly sweet.

    • @MartijnCoppoolse
      @MartijnCoppoolse 9 ปีที่แล้ว +1

      +CiderDivider Thanks, I didn't know that one.
      In that case, the alcohol denatures the proteins in the milk, which causes the curdling. (Also, coke is slightly more acidic, which might speed up the process.)
      It's perfectly safe, since the dangerous part of milk gone bad is the bacteria (or rather, their excrements). In your paralyzer, there's no bacteria (to speak of), and so no danger.

    • @CiderDivider
      @CiderDivider 9 ปีที่แล้ว

      +Martijn Coppoolse Interesting! I've seen conflicting information when I looked it up in the past, so when I seen this video that quickly came to mind. I know that coke and milk (or other dairy products like ice cream) have an interesting reaction when put together, but wasn't confident on the alcohol portion. And even googling it now, there are all sorts of ways to prevent it when you're mixing the drink, but everyone's got a different answer. Some are pointing at the temperature, others are saying the ratios need to change, and others are saying there's a specific order. I have a 50/50 rate with the curtling haha

    • @MartijnCoppoolse
      @MartijnCoppoolse 9 ปีที่แล้ว

      +CiderDivider My answer was indeed wildly simplistic. There's a surprising number of variables at play when making such a mixture. Milk is a suspension, your coffee liqueur probably too, and coke also has a far from straightforward composition. Temperature and the degree of acidity both play a role in whether or not it curdles. And since curdling is not an instantaneous process, having a little milk in a lot of alcohol will produce a different effect than a little alcohol in a lot of milk; which means the pouring order can be important too, and even the pouring speed...
      A Ukrainian friend of mine once showed me how to pour hot tea with milk _and_ lemon. In that case, it's the lemon's acidity that curdles the milk, so the trick is to use the tea's heat to break down the curdling agent (which tends to break down at temperatures above 70°C). I've managed it a few times, but it curdles more often than not. :-P

  • @ragecoder5351
    @ragecoder5351 7 ปีที่แล้ว

    Rotting relationship

  • @shrike6259
    @shrike6259 6 ปีที่แล้ว

    why does milk clump together? well Umm because of the bacteria in milk... they produce lactic acid. and the acid makes the protein clump .. it makes the protein "sticky" ... just a one liner ..

  • @caleblimb3275
    @caleblimb3275 9 ปีที่แล้ว

    PBS Studios > Revision3

    • @BrainStuffShow
      @BrainStuffShow  9 ปีที่แล้ว +2

      +Caleb Limb Personally, I can neither confirm nor deny whether I agree. But either way, we're not associated with either of those companies. :) /Lauren

  • @bernardrouhi451
    @bernardrouhi451 5 ปีที่แล้ว

    so if I let the milk go bad, basically I made kefir?

  • @KingAbdulhaqq
    @KingAbdulhaqq 9 ปีที่แล้ว

    Madd science

  • @voskanyansergo4249
    @voskanyansergo4249 4 ปีที่แล้ว +1

    Wowwwwwwwwwwwwwwwwwwww☣🖕

  • @EpicPotatoHD
    @EpicPotatoHD 9 ปีที่แล้ว

    ermagherd fihrst

  • @05lopjo
    @05lopjo 3 ปีที่แล้ว

    Are you a transgender?

  • @ishaan2947
    @ishaan2947 9 ปีที่แล้ว

    yeaa first to comment!

  • @RebrandSoon0000
    @RebrandSoon0000 9 ปีที่แล้ว

    forth :)

  • @instaprodigy_goat343
    @instaprodigy_goat343 4 หลายเดือนก่อน

    Why does the milk turn bad no way they made them so bad and then they became expired