Pie Weights, Plastic Wrap, and Aluminium Foil

Pie weights

Name of item              : Pie Weights

Function                      : to help when blind baking pie, so the pie crust don’t make a bubble

Materials                     : ceramics

How to clean               : using dry towel/napkin

Pie weights are small ceramic or metal balls that you use when "blind" baking a pie crust.

To blind bake a pie crust means you bake it naked, without its filling. Or, you may blind bake a pie crust for a pie that has an especially wet filling, so that the crust gets a head start on crisping up and is less likely to be soggy.

Pie weights prevent the crust from forming air pockets that bubble up or shrinking as it cooks. They weight down the dough so that it holds its shape and stays firmly nestled against the pie plate.

Source : http://www.thekitchn.com/pie-weights-what-they-are-and-68946

Plastic Wrap

Plastic wrap is a simple invention that is very useful to wrap and protect food to keep it clean. But in addition to its main task as a wrapper, plastic wrap also has many other unexpected functions.

Saran resins and films are similiar to plastic wrap and Saran resins and films, often called polyvinylidene chloride or PVDC, have been used to wrap products for more than 50 years.

Saran works by polymerizing vinylide chloride with monomers such as acrylic esters and unsaturated carboxyl groups to form long chains of vinylide chloride. The copolymerization results in a film with molecules bound so tightly together that very little gas or water can get through.

Source : 

http://www.tipsiana.com/2016/08/sepuluh-fungsi-plastik-wrap-yang-tidak.html?m= https://www.thoughtco.com/history-of-pvdc-4070927

Aluminium Foil 

Name of item                           : Aluminum Foil

Function                                  : To help cover the food when baking or roasting

Material                                   : Aluminum

How to cleaning                       : You only can use aluminum foil once

Aluminum foil is an aluminum alloy made in the form of thin sheets. The thickness of aluminum foil ranges from 0.2 mm and contains about 92% to 99% aluminum. Aluminum foil is available in various sizes and characteristics and is mainly used for packaging various items. Aluminum foil is sometimes also coated with plastic so it makes it stronger.

At the end of the 19th century and early 20th century tin foil was commonly used. Tin foil has a harder nature and tends to give a 'tin flavor' to the food wrapped in it. Tin foil was replaced by aluminum foil in 1910 and its use soon spread throughout the world.

Source :  

https://www.amazine.co/18183/apa-itu-aluminium-foil-sejarah-kegunaan-aluminium-foil/