Wie macht man Puffreis? | Die Maus | WDR

Summary

This script details the process of transforming four types of grains—oats, spelt, wheat, and rice—into nutritious and easily digestible forms. It explains that whole grains are hard for the body to break down, necessitating methods like milling wheat into flour for bread or puffing grains to unlock their nutrients. The video demonstrates the puffing process using rice as an example, showing how heat and pressure changes cause the grains to expand, making them more accessible to the body. The script also explores the industrial application of this process and concludes with creative uses for puffed rice, such as incorporating it into chocolate tablets or waffles, highlighting its versatility and nutritional benefits.

Takeaways

• 🌾 Four cereal grains - barley, rye, wheat, and rice - are valuable sources of nutrients for the body.
• 🚫 Whole grains are not easily digestible, so processing is necessary to unlock their nutrients.
• 🍞 Wheat can be ground into flour and used to bake bread, making the nutrients more accessible.
• 🍚 Rice can be cooked, which helps to release its nutrients.
• 🔍 Puffing is a process that enlarges grains, making them more digestible.
• 🔧 Puffed grains are used in muesli and are also known as puffed rice.
• 🏭 A large-scale facility with many tubes and a rotating large vat is needed for industrial puffing.
• 🌬️ Grains are heated with hot air in a transparent container to create a crust, similar to a roll.
• 🧪 A demonstration using a fan and rice to show how hot air is used to puff grains.
• 📉 The puffing process involves reducing external pressure, causing grains to expand.
• 🔄 In a factory, puffing involves a rapid pressure equalization between two containers, causing the grains to puff.
• 🚿 After puffing, grains have a foam-like inside and a crusty outside, making nutrients more available.
• 🍫 Puffed rice can be used in various ways, including being combined with chocolate to make snacks.
• 🍪 Puffed rice can also be used to make waffles, which are good for teeth and sugar-free.

Q & A

What are the four types of grains mentioned in the script?

The four types of grains mentioned are barley, spelt, wheat, and rice.

Why can't the body access nutrients directly from grains in their whole form?

The body can't access nutrients directly from whole grains because of the protective outer layers that need to be broken down or processed.

How is wheat typically processed to make it more digestible?

Wheat is processed by being ground into flour, which can then be used to bake bread, making it more accessible for the body to absorb nutrients.

What is the process of puffing grains and how does it help in making nutrients more accessible?

Puffing is a process where grains are enlarged, often by heating and rapidly expanding them. This process, similar to making puffed rice or puffed wheat, helps to break down the grain's outer layers, making the nutrients more accessible.

What is the purpose of the large facility with many tubes and a rotating vat mentioned in the script?

The large facility is used for the puffing process. The rotating vat and tubes help to heat and circulate the grains with hot air, facilitating the puffing process.

How is the puffing process demonstrated in the script using a transparent container and hot air?

The grains are filled into a transparent container and hot air is blown through it, causing the grains to be tossed around and puffed up, similar to the industrial process.

What is the purpose of the crust that forms on the rice grains during the puffing process?

The crust that forms on the rice grains is similar to the crust on a roll or bread, providing a hard outer layer that helps in the puffing process by containing the expansion during heating.

How does the vacuum pump experiment with the balloon under a glass bell relate to the puffing of rice grains?

The vacuum pump experiment demonstrates the principle of puffing by reducing the external pressure under the glass bell, causing the balloon (representing the rice grain) to expand, similar to how the grains puff up when the pressure is reduced in the industrial process.

What happens in the factory during the puffing process that is similar to the second experiment with two glass jars and a valve?

In the factory, there are two chambers with different pressure levels. When the valve is opened, the pressure equalizes quickly, causing the rice grains to be rapidly pulled and puffed, similar to the air moving from the higher pressure to the lower pressure chamber in the experiment.

What does the puffing process achieve for the rice grains?

The puffing process makes the rice grains expand, with an outer crust and an inner texture similar to foam. This process unlocks the nutrients, making them more accessible for the body to use.

How is puffed rice used in the creation of a chocolate treat as described in the script?

Puffed rice is used in the creation of a chocolate treat by placing a small amount of chocolate in form-shaped tablets, then passing these through a process where puffed rice is added on top of the chocolate, followed by another layer of chocolate. The treat is then cooled, the form is inverted to release the treats, and they are tapped out for consumption.

What alternative to chocolate-covered puffed rice is mentioned in the script?

An alternative to chocolate-covered puffed rice mentioned in the script is puffed rice waffles, which are described as being good for the teeth and sugar-free.