CELPIP Reading Part 3 Practice Test: The Art and Science of Cheese Making: From Milk to Maturation

Paragraph A

Cheese making is an ancient practice that combines both artistry and scientific precision, dating back over 7,000 years. The basic principle involves transforming milk into a solid form through a carefully controlled process of protein coagulation. While the fundamental steps have remained largely unchanged since ancient times, modern cheese making has evolved to incorporate sophisticated techniques and equipment that ensure consistency and safety in production. Today, there are more than 1,800 known varieties of cheese, each with its distinct characteristics, textures, and flavors.

Paragraph B

The cheese-making process begins with the selection of milk, which can come from cows, goats, sheep, or other mammals. The milk is first pasteurized to eliminate harmful bacteria, though some traditional cheese makers still use raw milk under strict conditions. The next crucial step involves adding starter cultures - beneficial bacteria that convert lactose into lactic acid. Following this, rennet, an enzyme traditionally extracted from calf stomachs but now often produced through microbial fermentation, is added to coagulate the milk proteins, forming curds and whey.

Paragraph C

Once the curds have formed, the cheese maker's skill becomes particularly important. The curds are cut, stirred, and often heated to release more whey and achieve the desired moisture content. The remaining curds are then shaped into molds, where they may be pressed to remove additional moisture and create the cheese's final form. Salt is typically added during this stage, not only for flavor but also to control moisture, inhibit unwanted bacterial growth, and help develop the cheese's protective rind. The specific techniques used during these steps significantly influence the final product's texture and taste.

Paragraph D

The final and often longest phase of cheese making is the aging or maturation process. During this time, which can range from a few weeks to several years, the cheese develops its distinctive flavor profile and texture through complex biochemical processes. Environmental factors such as temperature, humidity, and the presence of specific microorganisms must be carefully controlled throughout this period. Some cheeses are also treated with special molds or bacteria during aging, while others are regularly washed or turned to ensure even maturation. This patience-testing phase transforms what began as simple milk into the complex, flavorful products that grace cheese boards worldwide.

Paragraph E

Not given in any of the above paragraphs.