Tidbit #16 - April 11, 2011

I don't know about you, but when I come home after a long day, the first thing I have to eat is a peanut-butter and jelly sandwich, better known as PB&J action. It really hits the spot, the mixture of sweet and salty and peanut-buttery, with the taste of the bread... Anyways, I'm getting off topic. When I was having my sandwich today, I was thinking: "What's so different about jams, jellies and preserves?" So, naturally, I posted it on here.

Question: What's the difference between jam, jelly and preserves?


Answer: Luckily, we have TLC's cooking website to help us out. Someone asked on the forum and we've got a nice answer:

Jelly, jam and preserves all contain fruit in some form, mixed with sugar and pectin; the difference between them is caused by the form of the fruit in the substance:

• In jelly, the fruit comes in the form of fruit juice.
• In jam, the fruit comes in the form of fruit pulp or crushed fruit (and is less stiff than jelly as a result)
• In preserves, the fruit comes in the form of chunks in a syrup or a jam.

Pectin is a type of carb that your stomach can't digest and that is found in a fruit's cell walls. "When heated in water with sugar, it gels, giving jelly, jam and preserves their thickness.

So, what do we have here?

Jelly, jam and preserves differ in the form that the fruit takes in the container.

Tidbit #8 - April 3, 2011

Food can be one of the most pleasurable aspects of our day. And why? Because we all like the taste. There are entire reality shows (Top Chef, anyone?) based on food and its taste. But not everyone who tastes food knows how we taste it.


Question: How do we taste food?


Answer: If you know anything about the nervous system, then you should know that it's based on nerves. Your senses are caused by nerves, particularly specially made neurotransmitters. Your sense of taste is caused by (what else?) your tongue.

On the surface of your tongue are relatively 9000 different sensory receptors (called taste receptors) that pick up taste, also called taste buds. Different areas of the tongue correspond to different tastes, as shown in the diagram to the left. Speaking definitively, every taste bud on your tongue picks up the different chemicals in the food you eat and sends electrical signals through the neurons to the taste processing center of the brain, causing your food's taste.

By the way, all of those regions on the tongue diagram above which correspond to those tastes send more intense signals to the brain when the food you eat has chemicals that taste that way. (Basically, they taste stronger in those areas of the tongue)