to think larger quantities take longer to cook?

(38 Posts)

Debate with DMum. Apparently spag bol for 15 takes 20mins, based on the fact that spag bol for four takes 20mins.

I tried explaining that a much greater quantity of something will take longer.

We had the same debated last night. Apparently because "rice takes 20mins" 2kilo of rice will also onpy take 20mins.

I am right, yes?

Hmm, it'll take longer to bring a larger amount of something to boil, but from that point, the actual cooking should take the same time, no matter the quantity... I think....

DameDiazepamTheDramaQueen Wed 19-Feb-14 18:01:39

Spag bol should never take 20 minsshock

DameDiazepamTheDramaQueen Wed 19-Feb-14 18:02:07

You are right btw!

Well no, mine takes a while, which is why im cooking wink I started at 2.30.

loveisagirlnameddaisy Wed 19-Feb-14 18:04:56

If you're cooking in a conventional oven then quantities are irrelevant. Cooking in a microwave is affected by quantity. If you're cooking in a pan on the hob then larger quantities in the same size pan would take slightly longer. But I'm tending to agree with your DM.

Its an Aga

TunipTheUnconquerable Wed 19-Feb-14 18:07:01

The cooking time should be the same with rice, once it's come to the boil. But in an oven a larger lump of something will take longer because the heat has further to go to reach the middle.

Artandco Wed 19-Feb-14 18:09:11

The preps longer. My bolagnaise for 4 takes 3 hours..

lastnightIwenttoManderley Wed 19-Feb-14 18:20:50

Loveis Most things in an oven are quantity dependent...meat, cakes...

I agree about things on the hob though, if it's a sauce that needs to boil then it will take longer to get there but once it's there it will be the same time.

MadIsTheNewNormal Wed 19-Feb-14 18:22:34

A decent spag bol would take a couple of hours in my kitchen. The ragu needs that long, or it will taste all grainy and the flavour will be one dimensional.

Three hours!?

Do you make your own spagetti?

squeakytoy Wed 19-Feb-14 18:32:29

the sauce should simmer slowly for at least 3-4 hours for the flavour to properly develop.. perfect if done all day in a slow cooker.. mince cooked in 20 minutes is tasteless and the sauce is bland

Artandco Wed 19-Feb-14 19:25:54

It's needs at least a few hours for the ragu to cook and the meat to break down. Otherwise it's its mince meat in tomato sauce. Mine all the meat is tender and becomes part of he sauce.

My cousin works in an Italian restaurant and says they star the bolignaise sauce in the morning and doors open at 6pm, so 8/9 hrs min

mrspremise Wed 19-Feb-14 19:36:59

Bet they can spell Bolognese properly too...grin

Jolleigh Wed 19-Feb-14 19:39:09

What spag bol recipe only takes 20 minutes?!

Jolleigh Wed 19-Feb-14 19:42:47

Late to the party with my response again I see grin

Seriously though, I'm intrigued as to how it's physically possible to do a spag bol in 20 mins...

I could do it in 20 mins

If I'd already cooked the bolognese the night before. An hour min of simmering in this house.

But 20 mins of attention at either end, I could see - so 20 mins to fry stuff off, actually scrap that, chopping, frying off veg, browning mince, and then bringing to the boil would take more than 20 mins for me. And then 20 mins to cook pasta and serve several hours later...

I'd have thought just bring the stuff to the boil for 15 people would take that long. I have horrid memories of cooking for 12-15 in village halls, on ancient gas rings, with blunt knifes, and it taking forever!

cosikitty Wed 19-Feb-14 19:52:21

Rice takes 20 minutes from boiling no matter the quantity.

Spag bol takes the same to cook despite quantity. It will take you longer to chop the veg, and a few more minutes to reach simmering point but that is all. I cook for a minimum of 1 hour, ideally 1.5 but longer never hurts.

Roasting things, however does take longer for a bigger item, so a joint of meat or a chicken will take longer for a bigger one.

However, it will take an hour to roast 2 potatoes or 40 potatoes or 1 potato. Common sense.

cosikitty Wed 19-Feb-14 19:53:54

Dolmio- yuck!

HadABadDay2014 Wed 19-Feb-14 20:05:25

A 4lb joint of beef will be quicker than a 40lb of beef.

Mmmbacon Wed 19-Feb-14 21:17:36

WIBU To ask can all ye 4 hour simmer girls post your recipes? Please

tattychicken Wed 19-Feb-14 21:25:35

You cook rice for 20 mins?! Do you mean brown rice?

WitchWay Wed 19-Feb-14 21:28:26

12 mins for rice

Agree long simmering for bolognese also chilli

cosikitty Thu 20-Feb-14 07:54:30

No, I don't cook rice for 20 minutes, don't even know exactly how long it takes as I just go by testing, 20 minutes was just for the purpose of the example.

ethelb Thu 20-Feb-14 07:56:43

Spag bol for 20 minutes. You people cant cook.

cosikitty Thu 20-Feb-14 08:02:46

I don't have a set recipe for bolognese, it a chuck it in whatever I fancyish method. Usually

1 pack of extra lean steak mince and 1-2 diced onions depending on size and 2/3 cloves garlig crushed. I fry this off with a small anount of oil intil mince browned.

Then I add black pepper- lots! and a couple of thins of chopped tomatoes. While this is coming to the boil I chop up a small carton of mushrooms. I also add some veg if we have any in the fridge- finely chopped carrot/courgette/peppers/aubergine/etc Parsley/basil or something if we have any left over or hanging around, or maybe a sprinkle of mixed herbs if I fancy. I sometimes season with a little salt, or sometimes add a beef oxo bube. Then I simmer for ages over a low heat with the lid on. I might also need an extra tin of tomatoes if I 've chucked in extra veg or I might whizz up old tomatoes from the fridge which are going soft.

WhoWasThatMaskedWoman Thu 20-Feb-14 08:07:01

Spag Bol for 4 wouldn't take noticeably longer than for 2, but once you're scaling up to quants for 15 then it'll take a looooong time for it to come to the simmer, and to brown all the meat, and the veg prep will take ages if you don't Magimix it (even if you do, the peeling will still take longer).

Not that noticeable in the context of a proper 2 hour cook, but will at least double the time of a quick and dirty 20 minute job.

Which reminds me of my all time pet hate, the cook-from-scratch fascists who say "why on earth would you buy a jar of pasta sauce, when it only takes seconds to chop an onion and open a can of tomatoes?". Because Loyd Grossman's stuff has been actually cooked, and is, if not delicious, edible, unlike the crunchy warmed-up onions and tomatoes that taste mostly of their tin that you're suggesting. And breathe.

Artandco Thu 20-Feb-14 08:50:06

But a 3 hrs doesn't mean 3 hrs cooking. Takes 20 mins for me to chop/ soften veg/ town mince etc, then once tomatoes etc added its not like its me staring at it for 3 hrs, it's just lid on an occasional stir. I usually make triple quantities anyway so I can freeze and not have to make again for a while

Jolleigh Thu 20-Feb-14 09:34:25

Crunchy onions and tomatoes that taste mostly of their tin? You're definitely not cooking them enough...precisely why a bolognese needs more than 20 minutes.

(prepares to get pelted with tomatoes)

QueenStromba Thu 20-Feb-14 11:26:27

When I do bolognaise I make about 20 portions and simmer it for about 6 hours - how else do you get the red wine to reduce?

CrystalQueen Thu 20-Feb-14 11:31:40

This is not the thread I needed to read today as I am cooking spag bol for 30 at the weekend. It's going to be more at the crunchy onions and tomato end of the spectrum.

Suzannewithaplan Thu 20-Feb-14 11:38:32

A larger quantity will take longer but the relationship between food volume and cooking time won't be linear.

Ie double the volume won't take double the time, that may be the reason for the confusion.

Suzannewithaplan Thu 20-Feb-14 11:43:18

Re boiling, a larger amount of food will take longer to reach boiling point and will require more heat energy to simmer (at any given temperature) than a smaller amount.

Broadly speaking it is more efficient in terms of time and energy required to cook larger amounts of food.

2rebecca Thu 20-Feb-14 11:44:46

I agree that once food is up to temp it should take the same time to cook if a casserole or stuff on hob. Microwaved stuff takes longer the more you have and bigger cakes take longer to get heated through. After 20 min I'd only just have finished frying the onions and browning the mince, I usually simmer it for at least an hour.For the first 30 min I'm frying things and adding things. Spag bol isn't a quick meal, neither is a chilli. I do a carbonara if I want something quick.

Nocomet Thu 20-Feb-14 12:00:50

Spag Bol needs to bubble for at least an hour.

It's way way nicest if it gets 30-40 minutes then a night in the fridge (cold lean-to here in winter) and 30 minutes reheat.

3hrs very general bubble if you have a always on Agra would be pretty good too.

its the getting it up to temp part that takes the time though.... so I agree with OP.

although my bolognese is always cooked for about 4 hours and then left overnight and the reheated the next day. Always tastes better reheated I find.

Nocomet grin xpost

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