Cold Pressing Oil Knowledge Assessment

The video tutorial explains the extraction of vegetable oil, focusing on the cold pressing method. It starts with an overview of different extraction methods and then delves into the cold pressing process, highlighting the importance of temperature control. The screw press mechanism is described, followed by the filtration process to clarify the oil. Challenges in pressing different seeds like flax and hemp are discussed, along with packaging methods and shelf life considerations for oils.

What is the primary difference between cold pressing and other oil extraction methods?

• Cold pressing maintains flavor and nutritional value.

• Cold pressing uses solvents.

• Cold pressing yields more oil.

• Cold pressing uses high temperatures.

Why do smaller companies prefer the cold pressing method?

• It requires less equipment.

• It produces higher volumes of oil.

• It is more cost-effective.

• It results in higher quality oil.

What is a critical factor to monitor during the cold pressing process?

• The speed of the press.

• The temperature inside the press.

• The color of the oil.

• The type of seeds used.

What happens to the seed residue after oil extraction?

• It is used as fertilizer.

• It is discarded.

• It is reused in the press.

• It is used for animal feed.

How is the clarity of cold-pressed oil ensured?

• By letting it settle naturally.

• By passing it through cloth filters.

• By using chemical additives.

• By heating the oil.

Which seeds are particularly sensitive to heat during cold pressing?

• Sesame seeds.

• Flax seeds.

• Canola seeds.

• Sunflower seeds.

Why are cold-pressed oils bottled in dark glass?

• To prevent light exposure.

• To enhance the flavor.

• To make them look premium.

• To reduce production costs.

What is the shelf life of sunflower, canola, and sesame oils without preservatives?

• 12 months.

• 24 months.

• 6 months.

• 18 months.

How should flaxseed and hemp seed oils be stored to extend their shelf life?

• In a warm, sunny spot.

• In the refrigerator.

• At room temperature.

• In a cool, dark place.

What is a common enemy of cold-pressed oils that can cause them to spoil?

• Air.

• Dust.

• Water.

• Heat.