Did you know you can make a homemade glue from milk? All you need is milk, white vinegar and baking soda. The vinegar is used to split milk into curds and whey.
How to make glue from milk
What you need:
Milk
White vinegar
Baking soda
Pan
Water
Strainer
Make glue from milk
First you need to split the milk into curds and whey.
- Heat 1 and a half cups of milk in a pan, once warm add 3 teaspoons of white vinegar.
- Keep heating and stirring the mixture and you should see the curds ( solid part ) and whey ( liquid part ) separate.
- Strain the mixture using a sieve. You should be left with solid lumps which you can mould together to make a ball. These are the curds.
- Place the solid mixture back in the pan and add a little water and a tablespoon of baking soda.
- Heat the mixture until it starts to bubble.
- Give it a good stir and let it cool. You can now use it as glue. You might need to add a little more water or baking soda until you get the right consistency. It should look like a thick paste.
- I tested ours by sticking two egg boxes together ( both contain eggs, so are heavy ). It worked!!!
How can you make homemade glue from milk? Why does it work?
Here’s what happened to the milk. By adding the vinegar, you create a chemical reaction which makes the milk to separate into two parts, a solid (the curds), and a liquid (the whey). The curds are milk protein, called casein. Liquid casein is a natural glue.
When you add the baking soda it neutralises the vinegar ( which is acidic ). The bubbles are caused by carbon dioxide gas being given off as part of the reaction. The curds form a liquid again after being neutralised.
Mammozza
February 6, 2012 at 10:27 amIt’s very interesting. I have this idea in my mind but I haven’t realize it yet. Every sunday we do a scientific experimet and maybe one of the next sunday we will make it.
Greetings from Ital
Mammozza
February 6, 2012 at 10:27 amSorry from Italy
Actually Mummy...
February 6, 2012 at 3:55 pmAh! Interesting – not doing this one though when there are more beautiful things i still haven’t done – like the Christmas sugar crystals!
HELEN
February 7, 2012 at 12:07 pmamazing! that’s very clever…although I cant begin to imagine the smell!
x
sherri
February 11, 2012 at 11:02 amMy kids would love this! Fantastic idea! Thanks!
Beth
February 14, 2012 at 9:20 pmWOW!! How cool! You come up with the neatest ideas!!! Thanks for linking up to TGIF =-)
Beth
Victoria Labelle
February 24, 2014 at 5:13 pmYa, this is cool. But not THAT sticky.
lindsi
February 15, 2012 at 1:52 amoh NEAT! So glad I found this post…I’m going to try making glue! I’d love it if you would share this with my readers for Fun Stuff Fridays. Would you please link up? http://www.toysinthedryer.com/2012/02/14-days-of-valentines-fun-stuff-fridays_10.html
Cerys @ Rainy Day Mum
February 15, 2012 at 9:01 pmVery cool I think I need to store these ideas up for when I go back to teaching
Thank you for linking up to Tuesday Tots
Nien
February 9, 2013 at 6:49 amSweet! This is awesome.
dawn
August 21, 2013 at 2:55 amThis is awesome. Going to do this tomorrow. Then I’ll take it a next step. My daughter wants to know if add in borax would have the same effect on this glue as store glue.
tabluei
January 22, 2014 at 3:25 amthis is the best experiment ever.
im doing this experiment for my science project
wish me luck..:)
Carmela Mante
November 7, 2015 at 12:20 pmDoes this experiment work with evaporated milk?
Autumn Haynes
May 5, 2016 at 8:27 pmThis is a graet idea!!!!!!
Lauren
November 21, 2016 at 8:24 pmAWESOME!!
nanoalabad
February 10, 2017 at 11:12 amhow much will this glue still works before it dries
Jon Jones
April 21, 2017 at 6:34 pmVery cool! This type of glue was used in the early days of wooden aircraft construction.
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Pamela Bronson
January 4, 2018 at 2:05 amI believe this works best with skim milk.
Adrian Paul H.Tamayo
January 24, 2018 at 8:25 pmWOW! Thanks Science Spark I can do this from my SIP(science investigatory project)
Boyd Ramsay
September 16, 2018 at 1:43 amI recall reading that the very earliest Bell Helicopters – the one with the clear bubble –
used casein to mold the bubble. This was because they could mold casein, but
did not yet have the technology to make the bubble out of acrylic resin.
They had a big incentive to develop the acrylic bubble. If left out in the rain, the
casein bubble tended to turn “milky”.
Alice
February 18, 2019 at 5:43 amSo very cool! A McIver minute
Martha
February 18, 2019 at 3:01 pmCan you save this glue for a long time ?
Anita Manns
March 4, 2019 at 4:52 amLOVE ALL OF THESE RECIPES KEEP THEM COMING! ANITA L MANNS IN COMPTON
Lourdes
April 12, 2019 at 4:39 amGreat Science activity . Thanks