Seems totally natural to me

What they should have done was make a fresh home made burger, with a fresh bap from the bakery etc... and showed that in comparison... I might be wrong but I'm guessing a real burger would age a lot faster and more naturally! I actually thought that's what they would have shown at the end... but was disappointed to see such a plain video with no explanation!

You can see where their thumb of finger prints are on all the burgers.
I reckon they were just more careful relocating the McB to the jar.

awesome experiment, can you imagine this guy just sitting there with jars of burgers for 30 days

^ Or the thumb impressions from the staff making the burger. I wonder if the mold and other black stuff that grows on some of those burgers, was contamination from the person making it?!

It just shows the good hygiene standards at Mc Donalds..

I a sealed jar food shouldn't grow much mould until bacteria is present from contamination...

So, basically, they just proved that different fungi live in different places, and that not all burgers contain the same amount of water?

yes yes, but where´s the homemade burger?

Hey, check this video with the same experiment.. There is also a homemade burger and fries, that doesn't break down http://www.snotr.com/video/3503/Yummy_McDonalds_crap

this was done 10 years ago, has no one seen supersize me before....old news!

And yes its all to do with the standards of hygiene at the preparation stage, we already know this.

Have mcdonalds lost or gained profit since that film..? I'll let you all work it out for yourselves.

Better ingredients and better preparation makes for a better burger.
If this video was supposed to make Micky D's look bad it actually had the
opposite effect.
The person who made the Burger King sandwich must have just been to
the bathroom and not washed his hands afterwards.

Hygiene is an important factor, but all of you forget the added preservatives. So, this "experiment" actually shows how much preservatives are added to the different burgers (McD -> a lot)

#13 You are talking "junk science". All fast food burgers have preservatives in them , it is the moisture content that allows mold to grow.
The McDonald burger doesn't rot because its small size and relatively large surface area help it to lose moisture very fast. Without moisture, there's no mold or bacterial growth.The bun is toasted ,which helps reduce moisture ,and of course the fact that the meat is pretty much dry and sterile to begin with due to the high cooking temperature helps as well. It's not really surprising ; humans have known about this phenomenon for thousands of years. After all, how do you think beef jerky is made? It is called dehydration.
A burger with lettuce and tomato will mold quicker because of the moisture contained in them. So in the absence of moisture or high humidity, the hamburger simply dries out, rather than rot.

What a pointless test. You buy a burger, ten minutes later it doesn't exist because you have eaten it. What on earth do we need to know what condition it would be in if you took it home for a month?