1 00:00:00,520 --> 00:00:03,600 Speaker 1: Welcome to brain Stuff from how stuff works dot com 2 00:00:03,600 --> 00:00:15,600 Speaker 1: where smart Happens. Hi Marshall Brain with today's question, what 3 00:00:15,800 --> 00:00:20,400 Speaker 1: is the difference between jelly, jams and preserves and what 4 00:00:20,720 --> 00:00:25,520 Speaker 1: exactly is jello? Jelly, jams, and preserves are all made 5 00:00:25,600 --> 00:00:29,480 Speaker 1: from fruit mixed with sugar and pectin. The difference between 6 00:00:29,560 --> 00:00:33,320 Speaker 1: them comes from the form that the fruit takes, so 7 00:00:33,440 --> 00:00:37,040 Speaker 1: in jelly, the fruit comes in the form of fruit juice. 8 00:00:37,640 --> 00:00:40,400 Speaker 1: In jam, the fruit comes in the form of fruit 9 00:00:40,560 --> 00:00:43,959 Speaker 1: pulp or crushed fruit, and so it's less stiff than 10 00:00:44,080 --> 00:00:47,720 Speaker 1: jelly as a result. In preserves, the fruit comes in 11 00:00:47,800 --> 00:00:50,720 Speaker 1: the form of chunks of fruit in syrup or in 12 00:00:50,800 --> 00:00:55,920 Speaker 1: a jam. Pectin is an undigestible carbohydrate. In other words, 13 00:00:55,920 --> 00:00:58,960 Speaker 1: it's a fiber. It's found in the cell walls of 14 00:00:59,040 --> 00:01:03,000 Speaker 1: most fruit. When heated with sugar and water, it gels, 15 00:01:03,280 --> 00:01:08,280 Speaker 1: and that gives jelly and jam and preserves their thickness. Jello, 16 00:01:08,400 --> 00:01:12,520 Speaker 1: on the other hand, is entirely different. It's made from gelatin, 17 00:01:12,680 --> 00:01:15,920 Speaker 1: which is a protein made from animal skins and bones. 18 00:01:16,520 --> 00:01:20,560 Speaker 1: The protein gels after you boil it. Jello usually has 19 00:01:20,680 --> 00:01:24,720 Speaker 1: some natural or artificial colors and flavors added, and that's 20 00:01:24,720 --> 00:01:29,440 Speaker 1: why it has fluorescent colors. Be sure to check out 21 00:01:29,480 --> 00:01:32,640 Speaker 1: our new video podcast, Stuff from the Future. Join how 22 00:01:32,680 --> 00:01:35,240 Speaker 1: Stuff Work staff as we explore the most promising and 23 00:01:35,280 --> 00:01:40,200 Speaker 1: perplexing possibilities of tomorrow. The hou Stuff Works iPhone app 24 00:01:40,280 --> 00:01:42,959 Speaker 1: has arrived. Download it today on iTunes.