This document describes an experiment comparing pasteurized and homogenized milk. The introduction explains that pasteurized milk can be consumed since heating kills bacteria, while homogenized milk cannot be consumed since remaining bacteria produce acid that causes clumping. The experiment involves heating milk, adding acetic acid to induce clumping, and observing the results. Observations found the milk developed small clumps, demonstrating characteristics of expired milk. Goat milk was also examined and found to be yellower with no bubbles, a stronger smell, and a more intense taste than cow milk.

1. MILK
EXPERIMENT

2. Experiment
of
laboratory

3. Introduction of theory
-If you have milk pasteurization and milk
homogenization and are expedite only one you can
drink.
Why?
-The milk pasteurization you can drink, because in
the first there are any bacteria and It can’t do
anything.
-The milk homogenization you can’t drink, because
there are a few bacteria and it take substance of
milk and make acid, and this acid make lumps.

4. MATERIALS
•
•
•
•
•
•
Beaker
Erlenmeyer flask 100ml
Dropping pipette 1ml
Vacuum pipette
Glass rod
Reagents: UHT milk good acid (vinegar)
acetic acid.

5. Process

6. First heat up the milk for drawn on the
process

7. We put the milk on the Erlenmeyer
flask and add the acetic acid

8. It is mixing with the glass wind,
You can see that the milk there are
little lumps

9. This is the expired milk

11. View: is white, has
a few bubbles.

12. Taste: mild taste, but in our opinion the milk
alone is not very good, it’s better with sugar or
ColaCao.

13. Smell: makes a smell
that is not people
strong rather loose.

14. GOAT MILK

15. VIEW
• Is a bit yellowish,
has no bubbles as the
cow's milk and is
brilliant.

16. SMELL
• It has a strong smell, much more than that of the
cow.

17. TASTE
• The principle when the evidence you a taste loudly,
but when you have the tragas will much more forteta