Science of Cooking: Ask the Inquisitive Cooks! (2024)

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" How does adding baking soda affect persimmon bread? "

Hi Anne and Sue,

I was making persimmon bread the other night, and all the recipes I found told me to add baking soda to the pulp to stiffen it. I followed the instructions, and after letting it sit for about five minutes, the pulp became a solid, but somewhat gelatinous, mass. The persimmon bread turned out beautifully, very moist and fluffy. I’m wondering if this step had anything to do with it, and if it would be a good step in banana, pumpkin, or other breads.

Thanks.
Robin from San Francisco

Still have more questions? You'll find more answers in our archived monthly feature articles by the Inquisitive Cooks.

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Hi Robin,

Depending on the particular cultivar used, the growing conditions, and the degree of ripeness, persimmons can be highly astringent. The components that create astringency and make your mouth pucker are called tannins. Tannins can be abundant in persimmons. The squat Fuyu persimmon has no tannins and can be eaten while still firm. In contrast, the more common, acorn-shaped Hachiya remains astringent until its skin dulls and it has become so ripe that the flesh inside is almost jellylike.

Tannins play an integral part in the manufacture of a fascinating number of products—from animal food to leather to paper to red wine. Research in various fields indicates that an alkaline pH inactivates tannins. Adding baking soda, an alkali, directly to the persimmon pulp is an attempt to reduce astringency and to ensure that the tannins cause no further reactions as the batter is mixed.

Science of Cooking: Ask the Inquisitive Cooks! (23)
When persimmons are beaten to a pulp, tannins form complexes with carbohydrates, causing the pulp to stiffen to a gel-like consistency. When baking soda is added, a reaction with the moist and slightly acidic persimmon creates carbon dioxide (CO2), which also plays a role in encouraging the pulp to thicken. With other fruits, this gelling doesn’t happen because they aren’t as high in tannins. Your persimmon bread was light and fluffy because CO2 likely became trapped in the gel.

It’s better to not add baking soda to mashed banana and pumpkin when making breads with these fruits. Adding baking soda to these moist, acidic ingredients initiates a reaction that releases CO2. This happens extremely quickly with fruits that don’t form a gel. By the time the batter is mixed together, the CO2 has escaped.

Persimmon bread sounds delicious, and it’s something we’ve never made. Unfortunately, persimmons are now out of season in our markets, so we’ll have to wait. Would you consider posting the recipe for persimmon bread on the Forum? We’d welcome any further insights on making this bread.

Great to hear from you, Robin.
Anne & Sue

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Science of Cooking: Ask the Inquisitive Cooks! (2024)

FAQs

What is the scientific approach to cooking? ›

Molecular gastronomy is the scientific approach of cuisine from primarily the perspective of chemistry.

What are the scientific principles of cooking? ›

​​Exploring the Science of Cooking: How Heat Affects Food
  • Maillard Reaction: The Browning Magic. ...
  • Protein Denaturation: Changing Structures. ...
  • Gelatinization: The Science of Starch. ...
  • Caramelization: Sugars at Work. ...
  • Cooking Oil and Heat Transfer.
Oct 6, 2023

Is cooking chemistry or physics? ›

For example, the art of cooking itself is chemistry; we use various processes, including heating up and freezing food, adding spices to your favorite dish, browning bread, and more. Chemistry is an essential component in the kitchen.

What is the basic science behind cooking? ›

The role of heat, acid, and enzymes in cooking

Heat and enzymes: Heat breaks down enzymes such as proteins. This is called denaturing, and it's why egg whites turn solid and white when you cook them. Without this reaction, many foods wouldn't have their distinctive "bite" when you eat them.

What is the science of cooking called? ›

Molecular gastronomy, or progressive cuisine, is a movement that incorporates science and new techniques in the preparation, transformation and artistic presentation of food. It is the study of molecules as they relate to the chemical and physical processes of cooking.

What is the first principle of cooking? ›

It's a way of thinking, an ability to see that everything you do from the moment you step into the kitchen to the last dish you dry is part of a single, simple process. You realize that the “perfect” way to prepare any dish is whatever happens to work with you and your meal.

What are the six basic principles of food science? ›

For the most time it is important to know how your food will react in certain situations and cooking conditions. The six basic principles will surely help you with that! They are as follows: Caramelization, Coagulation, Denaturation, Emulsification, Gelatinization and the Maillard reaction.

Is cooking an exact science? ›

Cooking is flexible, while baking is precise

And while all cooking is scientific, it's true that baking relies on pure scientific precision to create a great dish.

What is the best question to ask a chef? ›

General Icebreaker Chef Interview Questions
  • When did you decide to become a chef?
  • What is your signature dish? ...
  • What is your favorite or least favorite dish to prepare? ...
  • How do you describe your overall cooking philosophy?
  • Name the three kitchen tools you can't do without?
  • Why are you considering a new position?

What are basic questions to ask? ›

Here are 10 conversation starters you can use to stimulate a conversation with someone new:
  • How do you spend your free time?
  • What's your favorite food?
  • Do you listen to any podcasts?
  • Have you heard of [movie or TV show you enjoy]?
  • What's your favorite thing to do on the weekend?
  • Do you have any pets?

How does cooking work scientifically? ›

Any cooking you do involves chemistry. The use of heat, cold, and cutting changes the composition of foods. Even simply slicing an apple sets off chemical reactions that change the color of the apple's flesh. If you heat up sugar to turn it into syrup, you're using a chemical reaction.

What is the science behind food? ›

What is Food Science? Food science draws from many disciplines, including biology, chemical engineering, and biochemistry to better understand food processes and improve food products for the general public. As the stewards of the field, food scientists study the physical, microbial, and chemical makeup of food.

Is cooking an art or science? ›

Cooking, also known as cookery or professionally as the culinary arts, is the art, science and craft of using heat to make food more palatable, digestible, nutritious, or safe.

Can cooking be a scientific method? ›

If a cook draws on the scientific knowledge of an expert for guidance, there may be a scientific mindset in their cooking. There is also a parallel between the order of scientific method and that of culinary method, both of which are focused on producing results.

What is the science of cooking techniques? ›

Convection
  • Convection can be as simple as stirring a pot on the stove.
  • Hot air in an oven creates movement either through a natural or a fan-forced process.
  • Boiling, simmering, or steaming creates movement through the heating and condensation of water.
  • Deep-frying in oil is a convection process similar to boiling water.

What is scientific method in food? ›

Nutritional scientists discover the health effects of food and its nutrients by first making an observation. Once observations are made, they come up with a hypothesis, test their hypothesis, and then interpret the results.

What is the scientific definition of cooked? ›

In scientific terms, cooking is transferring energy from a heat source to the food. It is as much about the ways ​heat changes the food as it is about the heat itself.

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