Tutorial Pembuatan Sabun Cair dari Minyak Jelantah

KKN-PPM UGM PANGALENGAN UNIT C

6 Aug 202104:13

Summary

TLDRThis video script outlines a method for recycling used cooking oil into liquid soap. It emphasizes the health and environmental hazards of reusing oil for frying more than three times, as it produces harmful peroxide compounds. The tutorial details a two-step process: first, purifying the used oil by filtering and mixing with glycerin; second, creating liquid soap by combining the purified oil with potassium hydroxide, adding essential oils for fragrance, and coloring. The final step includes adding salt to thicken the soap before transferring it to a plastic bottle for use.

Takeaways

🍳 Cooking oil is one of the nine essential substances needed by humans daily.
🚫 Used cooking oil should not be reused more than three times due to the formation of harmful peroxide compounds.
🌿 Peroxide compounds from repeatedly heated oil are toxic and can be harmful to both health and the environment.
🔬 The script provides a tutorial on how to process used cooking oil into a useful and environmentally friendly liquid soap.
📝 The first step in the process is purifying the used oil, starting with 1600 milliliters of it.
🧊 A step involves adding glycerin to the oil and mixing until fully combined, then filtering the mixture.
🧪 The second stage is making liquid soap, which begins by dissolving potassium hydroxide (KOH) in water, requiring safety precautions.
💧 After the KOH is dissolved, it is mixed with the purified oil, with only 150 milliliters of oil being used.
⏱ The mixture needs to be stirred for 20 to 30 minutes until it thickens and begins to trace.
🌼 Essential oils are added for fragrance, and colorants can be mixed in for a visually appealing soap.
🧂 Salt is used as a thickener, with 5 grams dissolved in a small amount of water before being added to the soap mixture.

Q & A

What is the significance of cooking oil in daily life?
-Cooking oil is one of the nine essential substances required by humans in daily life and is closely related to the cooking process.
How many times is it safe to reuse cooking oil for frying?
-Cooking oil should only be used for frying a maximum of three times. After that, it can produce harmful compounds.
What are the harmful effects of repeatedly using cooking oil?
-Repeatedly heated cooking oil can produce peroxide compounds, which are free radicals that are very toxic to the body and harmful to the environment.
How can used cooking oil be processed to be beneficial and environmentally friendly?
-The script suggests processing used cooking oil into liquid soap, which is a two-step process involving purification and soap-making.
What is the first step in processing used cooking oil into liquid soap?
-The first step is to purify the used cooking oil by filtering it through a sieve or cloth.
What is the role of glycerin in the purification process?
-Glycerin is added to the used cooking oil and mixed until well combined to aid in the purification process.
What is the second step in making liquid soap from used cooking oil?
-The second step is making the liquid soap by combining the purified oil with potassium hydroxide (KOH) and water.
Why is it important to wear gloves when handling potassium hydroxide (KOH)?
-Potassium hydroxide is a caustic substance that can cause burns, so gloves are necessary for safety.
How much potassium hydroxide is used in the soap-making process?
-32.5 grams of potassium hydroxide is used in the process.
What is the purpose of adding essential oil and color to the soap mixture?
-Essential oil is added for fragrance, and color is added to make the soap visually appealing.
What is the function of salt in the soap mixture?
-Salt is added as a thickener to help the soap mixture become thicker and more stable.
How is the final soap mixture transferred to a container?
-The liquid soap mixture is poured into a plastic bottle for storage and use.

Outlines

00:00

🍳 Oil Reuse and Soap Making

This paragraph discusses the importance of cooking oil as one of the nine essential daily necessities for humans. It highlights that oil should ideally only be reused up to three times due to the formation of harmful peroxide compounds after multiple heatings. These compounds are toxic and harmful to both health and the environment. The paragraph then transitions into a tutorial on how to process used cooking oil into liquid soap, emphasizing its environmental benefits. The tutorial is divided into two stages: purification of the used oil and the creation of liquid soap.

Mindmap

Keywords

💡Cooking Oil

Cooking oil is a type of edible oil used in frying, baking, and other cooking methods. It's one of the nine essential substances required by humans for daily life. In the video, it's mentioned that cooking oil should not be reused more than three times due to the formation of harmful compounds upon repeated heating.

💡Reused Cooking Oil

Reused cooking oil refers to oil that has been used for frying or cooking and is then reused for the same purpose. The video script highlights the negative effects of using oil for more than three frying sessions, as it can produce peroxide compounds that are toxic and harmful.

💡Peroxide Compounds

Peroxide compounds are chemical compounds that contain peroxide anions. In the context of the video, these compounds are formed when cooking oil is heated repeatedly and can be toxic to the human body, thus emphasizing the importance of not reusing oil excessively.

💡Free Radicals

Free radicals are atoms or molecules with unpaired electrons that are highly reactive. The video mentions that peroxide compounds in reused oil can lead to the formation of free radicals, which are very harmful to health and the environment.

💡Environmental Impact

Environmental impact refers to the effects of human activities on the environment. The script discusses how the misuse of cooking oil can be harmful not only to health but also to the environment, indicating a broader ecological concern.

💡Purification Process

The purification process is a method of cleaning or refining a substance. In the script, the first step in making liquid soap from used oil involves purifying the oil by filtering it through a cloth or sieve to remove impurities.

💡Lye (Sodium Hydroxide)

Lye, or sodium hydroxide, is a strong base used in various industries, including soap making. The video describes using lye as part of the second step in creating liquid soap, where it's mixed with water to create a caustic solution that reacts with the purified oil.

💡Liquid Soap

Liquid soap is a type of soap in a liquid form used for cleaning. The main theme of the video is to demonstrate how to transform used cooking oil into liquid soap, which is both beneficial and environmentally friendly.

💡Essential Oil

Essential oils are concentrated hydrophobic liquids containing volatile aroma compounds from plants. In the script, essential oil is added to the soap mixture to provide fragrance, enhancing the sensory experience of the final product.

💡Colorant

Colorants are substances that add color to materials. The video mentions adding colorant to the soap mixture to make the soap visually appealing, which is important for consumer preference.

💡Salt

Salt is used in the soap-making process as a thickening agent. The video script includes a step where salt is dissolved in water and added to the soap mixture to help it thicken, which is crucial for the soap's texture and usability.

Highlights

Oil is one of the nine essential substances needed by humans in daily life.

Oil is closely related to cooking processes but should not be used more than three times for frying.

Excessive use of oil for frying can produce peroxide compounds, which are harmful to the body and environment.

The process of refining used oil is explained in the tutorial.

The first step is to purify the used oil by filtering it through a sieve or cloth.

1600 milliliters of used oil is used for the purification process.

Glycerin is added to the used oil and mixed thoroughly.

The mixture is then filtered again using filter paper and a funnel.

The second step is making liquid soap from the purified oil.

4-5 tablespoons of water are added to 32.5 grams of potassium hydroxide (KOH).

Safety precautions are emphasized when handling KOH, such as wearing gloves and using heat-resistant containers.

The KOH solution is mixed with the purified oil, with only 150 milliliters of oil being used.

The mixture thickens and starts to resemble soap after stirring for 20 to 30 minutes.

Hot water is added to the mixture to help dissolve any lumps and ensure an even consistency.

Essential oils are added for fragrance, and colorants are used to make the soap visually appealing.

Salt is added as a thickener, with 5 grams dissolved in 1-2 tablespoons of water.

The salt solution is mixed into the soap mixture until fully incorporated.

The resulting liquid soap is poured into a plastic bottle for storage and use.

The soap is tested for washing hands, showing effectiveness without leaving a greasy residue.