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Monday, 6 August 2012

Homemade Yogurt - the Ultimate, Fuss Free Way

 
 
UPDATED on 23 Oct 2010 with additional photos and details
 
Note: Since I posted this, I have had quite a lot of queries and feedback on the finer points of making homemade yogurt.  Based on all this discussion, I have added in some new photos for better illustration as well as some specific points on the cooking process.  Hope this helps!
 
 
For someone who loves her yogurt with a passion, it has never occurred to me to make my own yogurt until recently. I came across many blogs that sang the praises of homemade yogurt, and i thought what a great idea. Homemade yogurt has no addictives, preservatives or colouring, and certainly none of that mouth-puckering aftertaste or bite. It is way cheaper than commercial ones, you can control the sweetness of it and make it as creamy or as watery as you like. Perfecto!



 
 
 

To get a good feel about the whole process, i must have read about 20+ different postings on how to make yogurt. In the end, I settled for what seems to be the most straightforward method - boil the milk, cool it down to 40degree celcius (most important), mix the starter, set it in the microwave, and lastly set it in the fridge. I won't explain the details here, you can google it and there're plenty of postings on how to do this.


So I thought that sounds do-able. On my first attempt, I started around 2pm, and had to set my alarm at 12.30AM (yes that's twelve thirty MIDNIGHT) to finish off the last step. Yup, making your own yogurt takes about 10 hours at the least. But the good thing is most of the time it's just waiting for it to set.


However, after experimenting with it a few times, there are a few details that kept bugging me.


1. Like boiling the milk. I have a bad habit of multitasking on a million things, so keeping an eye on boiling stuffs (like milk and porridge which boils over VERY easily, and require constant stirring to prevent browning) does not really work with me ;P

2. Like waiting for the milk to cool to 40degree celcius. It took almost two hours, and i was hotfooting like a cat on hot coals. Patience - not my best virtue ;P

3. Like setting it in the microwave for 5 hours....but the microwave is my best friend, and it's off limits for FIVE hours??

I kept thinking there must be a way to simplify this already simple process (if my mum is reading this; and i know she reads my blog :P; i can imagine her rolling her eyes and muttering "aiyohhh....so simple but still say so much work!). I went back and re-read the different postings again, and then it dawned on me how i can short-cut the entire process.


So now may I present to you...

Homemade Yogurt - the Ultimate, Fuss Free Way


The basic ingredients remain...
  • 1 litre of fresh pasteurised milk (I like to use Marigold Low Fat Milk)
  • 3 tbspn of store-bought, plain yogurt as the starter (I use Nestle Natural Set Yogurt).

...but the process is significantly easier :)


1. Pour the milk into a pot and heat to 40degree celcius on medium heat. Use a thermometer to check the temperature.  This is a crucial step - do not heat the milk above 43C as that will risk the bacteria being killed by too much heat.

2. Remove from fire, use a ladle to scoop out a little milk and mix in the starter.  Stir until the starter is evenly mixed into the milk, then pour everything back into the pot.  Stir gently to distribute the starter.

3. Cover and leave it for 6 hours. I usually just set it aside in a quiet corner in my dry kitchen, away from any draft.

4. After 6 hours, the texture of the yogurt would have turned into a very wobbly pudding (like a tau-fu-fa). Don't be tempted to touch it or swirl the pan or disturb it in any way. Just gently put it into the fridge to set overnight or for at least 6 hours.

That's IT! The Executive Summary. In four sentences. (The ex-consultant in me talking).

No need to boil the milk and risk a messy stovetop, or wait for 2 hours to cool the milk, or hog the microwave for 5 hours. Instead of 2.5 hours for step 1 and 2, this can now be done in 2 minutes flat.


All you need is one pot to do the whole job. Choose one that can hold just over 1 litre of liquid, and that which has two ear handles rather than a saucepan - for easier storage in the fridge; and a clear glass cover so you can see what's happening to the yogurt.


Creamy yet runny.  This is straight out of the fridge after the overnight
fermentation.  Notice that there is no separation of whey and yogurt.
It is all runny creaminess.  This is what you aim to get.


This is what you will get if you did not mix the starter with some milk
first before pouring into the pot - some parts of the yogurt have set
whilst the rest are runny and watery.  It will still taste fine and is perfectly ok for consumption, just, well, not mixed in well!


If you like it thick and creamy ala Greek yogurt style, strain it over a muslin cloth or coffee filter in a sift atop a deep bowl.


Strain it like so.


Thick and creamy.  Just like cream cheese.  Minus the calories.

Another batch that I made recently, it is so thick, almost curdlike.



Lift up the muslin cloth and it will fold over like a lazy sleepyhead!


The thing about strained yogurt is - it is at its thickest straight out of
the fridge.  The longer you leave it out in room temperature, it will
become runny again, but of course not as runny as before straining.

The only thing you need to be aware of is, since we are not boiling the milk, to  make sure that all your cooking equipment is scrupulously clean and free from grease, to minimise any risk of contamination. 

So here you go, homemade yogurt in the easiest possible way :) Just remember to save some of your new homemade batch as the starter to make the next batch.

 
Best ways to eat yogurt:

1.  Have it with muesli and bananas for breakfast 






2.  As a healthy fruit salad whenever the mood strikes




3.  Blend it with fruits for a great tasting smoothie.


Durian Smoothie


4.  Strain it into a thick and creamy texture, and make your own Greek style herb yogurt cheese dip - recipe coming up in later post!





32 comments:

  1. Ooooo.....durian yogurt smoothie! It has been ages since I made yogurt. My yogurt maker is in hibernation and this post certainly is motivation for me to take it out and make some. I used to have banana yogurt smoothies with frozen berries for breakfast. Is that delicious or what!

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    1. I love the idea of banana smoothie with frozen berries as breakfast. Such a treat ;)

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  2. So sweet of you to drop by my blog. Your yoghurt look interesting and versatile!

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    1. Thanks Cheah :) love your blog, learned alot from your postings :)

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  3. Oh wow, durian smoothie with home made yoghurt. No one can beat that. Sure takes alot of patience to make yoghurt. Well done!

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    1. Thanks Mich! Takes s long time but well worth it :). Can make lotsa other stuffs from yogurt.

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    2. Esther, you have lovely photos. Are you using a DSLR?

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    3. Esther, you have got me very intrigued! Where do i buy the starter? I need to get a food thermometer. The last time I tried to use my kids' thermometer and almost spoilt it :p

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    4. Just buy the smallest tub of plain yogurt as your starter. Then once your own homemade batch is ready, saved some as your next starter. Food thermometer? No need la, i use my kid's one heehee. 40degree celcius wont spoil it :)

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  4. this is real good i shall try
    thks for sharing :)

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  5. ah! i must make this soon! should have kept some of ur yogurt for starter. HAHA

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    1. Oh yea...me so absent minded, didnt thought of that either...never mind, just use half of the small tub and make sure you shake it properly first.

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  6. Esther this one didn't work for me :( used pot set natural yoghurt and it didn't mix that well with the milk as it's quite solid. Any tips?

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    1. Hi Marianne, i'm not sure what's pot set, but most store bought yogurt usually are already semi solid. Just buy the smallest carton you can find, here we can get them in 140g or 100g. The trick is, before you tear open the seal, to give it a few vigorous shake, so as to break up the solids and make it creamy again. Then scoop out 3 tbspn into a separate bowl, and mix it with a few scoops of the warm milk. Stir until the mixture is smooth and well mixed. Then pour everything back into the pot of warm milk and stir gently a few rounds. Remember, whatever form, texture and taste of the starter you mix in, that is how your yogurt batch will turn out. This should work. Let me know how it turns out ya. There are also a few other variables like the weather temperature, the temperature of the milk when you mix in the starter, so it takes a few rounds to get the hang of it.

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  7. Thanks Esther! And for your banana advice too. Will be making that this weekend for Cheryl and Keng as well as your lemongrass chicken rice rolls (have already made this one a couple of times and it works well!). Will give the yoghurt another go...

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    1. Sigh..wish i could join you guys! Send my greetings to them ya! Glad to hear that the lemongrass rolls went well. Give the lettuce rolls with pork mince a go next time - it's good too.

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  8. Is there any expiry on this home made yogurt? Within how long we must finish the 1L? Hehe :D

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    1. Hi Bing, thanks for dropping by here. Best to finish the yogurt within 1 week, for maximum freshness.

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    2. Thanks... Need to find a food thermometer as soon as possible... Can't wait to try it... hehe...

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    3. Or a kid's thermometer will do just fine. You can get it from pharmacies. Good luck! Pl see my earlier comments in replying to Marianne on the fine details of doing it. Hope it works out :) let me know ya.

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    4. My yogurt failed... hahaha... i doesn't become like tau-fu-fa... It taste like coconut oil and looks runny... :D

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  9. Aiyo...can you describe to me your steps and your ingredients? Let's try and troubleshoot :)

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    1. Boil it to 40++ degree celcius. Pun inside the container and mix in the starter. Cover up and left for 8 hours. After 8 hours straight into the fridge for more than 10 hours. Starter using the same nestle yogurt and marigold low fat milk... :D

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    2. Hi Bing, 40++ is almost 50? It is possible that the milk is too hot and has killed the bacteria. Did you add enough starter? 3 tablespoon of starter to 1 litre of milk. Was the starter in smooth creamy form and mixed in with a small portion of milk first before pouring into the rest of the milk? This is a key step to ensure even distribution of the starter. Is the container properly cleaned, dry and free of grease? Was the yogurt "disturbed" much during the first 8 hours of fermentation? If you have done all the steps properly, pls dont give up. Try again, it is worth it! Just takes a bit of experimentation to get the hang of it.

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  10. Just 43c. Starter more than 3 tablespoon. haha... Container is grease free and not disturbed at all during the fermentation. Maybe because i didn't mix the starter with a small portion of milk first before adding it to the rest(this part I forgot). I just stir in the starter to the milk. LoL... Got to give it another try. Thanks Esther. :D

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  11. Hi Bing, try to time the temperature to no more than 41C. And choose a container that you can do all the steps, ie heat the milk, mix the starter, ferment the yogurt and keep in fridge. A large 1litre+ stainless steel mug or pot is ideal. No need to pour into a separate container for the fermentation. And yes, do remember the mixing of starter with a small portion of warm milk first. Fingers cross for your 2nd attempt. I wait for good news ya :)

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  12. Hi Esther! I tried this recipe yesterday and wasn't very successful, and I'm not quite sure why. I followed the directions as described, and added the starter at 41C. I used Oikos brand Greek yogurt, if that makes a difference, but the batch never solidified. It's still just a pot of liquid. What went wrong?

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    1. Hi Barbara, if the milk did not solidify, most probably its due to the starter yogurt bacteria. I've never used greek yogurt as a starter, so i'm not sure if that's the reason. Best to try with regular yogurt, and check that your thermometer works. What's the weather at your part of the world? If its cold, i would suggest you wrap your pot with a towel and keep it inside the microwave for at least 5 hours with the door close to help with the fermentation. Sometimes i do that too.

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