Problem: Write an article based on this summary: Buy Choose an insulated cooler with an air vent. Use thick gloves to handle dry ice. Place your ice cream on the bottom of the cooler. Wrap your dry ice in a towel and place it in the cooler. Keep drinks and other snacks in a separate cooler so they don't freeze. Fill up all of the extra space in the cooler. Store your cooler in the trunk if you'll be taking your ice cream on the road. Keep the cooler out of direct sunlight. Leave the dry ice at room temperature when you're finished with it.

Answer: about 1020 pounds (4.59.1kg) for a 40 quarts (38L) ice chest. You can buy dry ice at most grocery stores for about $1.00-$3.00 USD per pound (0.45kg). Dry ice evaporates at a rate of about 510 pounds (2.34.5kg) a day, so if you get it too far in advance, there won't be any left. Dry ice usually comes in 10 by 2 inches (25.4cm 5.1cm) squares weighing about 10 pounds (4.5kg). You'll need one square for every 15 inches (38cm) of cooler length. You can make your own dry ice by spraying a CO2 fire extinguisher into a pillowcase for 2-3 seconds. Wear gloves, closed-toe shoes, and other protective gear if you try this yourself. Since dry ice creates vapor, make sure your cooler has an air vent or a valve that allows the gas to escape. If your cooler is completely airtight, the vapor will cause pressure to build up, which can lead to an explosion. If your cooler doesn't have a valve, leave the top open slightly. Plastic and styrofoam coolers are common options for storing dry ice. Dry ice can "burn" your hands although at temperatures of 109F (78C), the burns are actually severe frostbite. Either way, don't let your bare skin come into contact with the block of dry ice when you're getting your ice cream out of the cooler! Since cold air sinks, dry ice works best when it's placed on top of the items that it needs to keep cool. If it's possible, you should put your dry ice on the top of the other items in the cooler. This will insulate the dry ice and keep it cooler longer. It will also help protect anything in the cooler from being damaged by the dry ice. Dry ice is powerful enough to freeze anything beneath it. Keeping drinks and snacks in a separate cooler from your ice cream will help ensure they don't freeze, and it will also help prolong the life of your dry ice. Empty space in the cooler will cause the dry ice to evaporate more quickly. If you don't have enough food to place into the cooler, you can fill the cooler with regular ice or you can use fillers like towels or crumpled-up newspaper. Or just buy more ice cream! Close the lid securely after filling the cooler. As dry ice evaporates, it turns into carbon dioxide. In a small, closed-in space like a vehicle, the carbon dioxide buildup can cause you to become light-headed and even pass out. If you don't have room in your trunk, make sure you roll down your windows or set your air conditioner to circulate fresh air from outside. Your dry ice will stay cold longer if you keep it in the shade. Cleaning up dry ice is a breeze! Once you've finished your ice cream, just open your cooler and leave it in a well-ventilated place. The dry ice will convert to carbon dioxide and will simply dissipate into the air. Never dispose of dry ice in a sewer, sink, toilet, or garbage disposal. It can freeze and rupture the pipes, and may even lead to an explosion if the dry ice expands too quickly.

Problem: Write an article based on this summary: Pour the egg and the milk into a bowl and whisk them together until they are well combined. Add the currants to the egg and milk mixture. Combine the flour, sugar, nutmeg, baking powder, baking soda and kosher salt in a large bowl. Position a sifter or sieve over another clean bowl. Turn the handle of the sifter or tap the sieve until the dry ingredients pass through the mesh and into the bowl. Grate the frozen sticks of butter using the largest holes on a box grater. Add the grated butter to the bowl with the sifted dry ingredients. Pour the egg, milk and currant mixture over the flour and butter mixture. Shape the dough into a flat disc.

Answer:
Stir these dry ingredients a few times with a wooden spoon to combine them. Scoop 1 cup of the dry mixture into the sifter or sieve. Continue sifting the dry ingredients 1 cup at a time until all of them have been sifted together. Make sure to place a plate beneath the grater to catch the frozen butter pieces. Using clean hands, mix the butter pieces into the flour mixture until the dry ingredients begin to resemble coarse crumbs. Mix the ingredients well using a wooden spoon. Wrap the disc in plastic wrap and chill it for 1 hour in the refrigerator.