If your not sure what the red litmus paper test is, its just when a piece of aluminium foil is added to a tube of sodium hydroxide and nitrate salt and a piece of litmus paper is placed on the top which turns the middle of the litmus paper blueIf you still don't know then check Google, it will be on thereI just wanted to know what reaction is there during the test and what chemical is being produced?
A basic jelly-roll cake is a good one to have in your repetoireFill it with jams or jellies, lemon or tangerine curd, pastry cream, ice cream or just about anything your imagination can conjureThis is a relatively quick and easy dessert that's sure to pleaseYou can use this recipe to make pastry chef Jean Fra?§ois Houdr??'s classic Yule Log Cake follow link for step-by-step photos instructionsIngredients: 5 large eggs, separated 1/2 cup sugar 1 teaspoon vanilla 1/2 cup flour confectioner's sugar Instructions: Preheat oven to 350?° FGrease a 15 x 10 jelly-roll pan and line with parchment paperBeat egg whites in a large bowl until soft peaks formGradually beat in 1/4 cup sugar and continue beating until stiff peaks formIn a separate bowl, beat egg yolks, vanilla and remaining 1/4 cup sugarContinue beating until thick, about 6 minutesMix in flour just until blendedGently fold egg yolk mixture into beaten egg whitesSpread the batter in the prepared panBake for about 12 minutes or until cake top springs back when lightly touchedTo remove cake from pan and cool, sift confectioner's sugar over a clean kitchen towelLoosen the edges of the cake from the sides of the pan with a small knifeInvert cake onto the prepared towel and carefully peel off the parchment paperStarting from one short edge, roll up the cake and the towel together, like a jelly rollCool completely on a wire rackAfter cooling, unroll cake and spread with pastry cream, jams, lemon curd or whichever filling suits your fancyRoll up from the short side, without the towel this time and transfer, seam side down, to a serving platterSprinkle with confectioner's sugar or frost.
Ask a person with a doctorate degree in ad advanced organic chemistry, and maybe they could answer it .
