Why, when dipping a digestive biscuit in a cup of tea, does it turn soggy quicker than it would if you dipped it in a cup of coffee? Both the water is from the same kettle and therefore the same temperature?
2006-11-25 23:49:41 · 8 answers · asked by Bob F 1 in Science & Mathematics ➔ Biology
coffee is more oil based, tea breaks up the water surface so that why it absorbs more liquids, a bit like crstals used in composts, it helps is to absorb more moisture
2006-11-25 23:52:42 · answer #1 · answered by Anonymous · 0⤊ 0⤋
If your bicky goes soggy and plops into the cup - your doing it for too long.
Try this; bite both ends off a chocolate finger
put one end in your tea
suck the other end until the tea is sucked up the inside of the biscuit and hits your mouth.
Then put the whole biscuit into your mouth and enjoy
The biscuit is just damp and the chocolate hasn't melted!!!
2006-11-26 03:45:48 · answer #2 · answered by Anonymous · 0⤊ 0⤋
In addition to temperature, the substances contained in either coffee and tea also play are role in how quickly the biscuit will dissolve. Other than that, I don't really know...
2006-11-25 23:58:07 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Try the experiment without milk or sugar - both should soak into the biscuit at the same speed.
2006-11-26 00:03:36 · answer #4 · answered by Phlodgeybodge 5 · 0⤊ 0⤋
Depends on how much milk is in the drink, which affects the density of the fluid.
2006-11-25 23:58:17 · answer #5 · answered by Scotty 7 · 0⤊ 0⤋
It's not something that I've noticed, and if I did, I wouldn't lie awake worrying about it.
2006-11-25 23:54:03 · answer #6 · answered by Polo 7 · 0⤊ 0⤋
coffee has oils in it. i would look at that first. then consider pH.
2006-11-25 23:51:50 · answer #7 · answered by Anonymous · 0⤊ 0⤋
man! you must get bored lol
2006-11-25 23:51:46 · answer #8 · answered by Bruza 17/uk 3 · 1⤊ 0⤋