Cooking Stack Exchange
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Questions tagged [chemistry]

Questions about the chemical composition or properties of ingredients and dishes.

186 questions
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Is it safe to use a grill to cook when chemically treated wood was burned in it?

my son burned chemically treated wood in my grill for a bonfire. Can I still cook in it, is it safe? or do I need to buy another grill?
Nancy
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Why do potatoes cook more slowly in a stew?

I recently made a stew, not for the first time either, and I've tossed in a few potatoes, cut into cubes. It took about an hour and a half until they were soft. The stew was simmering the whole time. In contrast, if I put potatoes into water and…
Ink blot
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Is Erythritol acid or alkaline and what is it's pH compared to brown sugar?

Is Erythritol acid or alkaline and what is it's pH compared to brown sugar? In many baking recipes, baking soda is added together with acidic ingredients, such as brown sugar. Also, this way, the possibly metallic taste of baking soda is…
Joao
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Properties of potassium carbonate as leavening agent

We have a gingerbread recipe calling for potassium carbonate (vulgo baking potash). One year I replaced the baking potash with baking soda 1:1. It worked fine. Later I researched what the supposed differences are and found a claim that you may leave…
0xC0000022L
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What specific sugars are found in apple cider, apple juice, and apple cider vinegar?

My wife has a chronic, not-very-well-understood GI condition that includes hyper-sensitivity to certain foods. We're looking to more information about the chemical composition of various foods for both healthcare and home-cooking purposes. In…
Alex P
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How to bake baking soda to produce sodium carbonate?

I'd like to make sodium carbonate for ramen noodles. The instructions on the web however vary greatly. One source says to bake baking soda at 350 degrees for 2-5 hours. Others say 250 degrees for an hour. Another says just 200 degrees for an…
user50726
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Does Sugar Cook Eggs?

There's a old wives tale of sugar cooking eggs. I was wondering if there's any substance to that or if it's merely a concentration of the egg as the sugars absorb water. I was watching The Try Guys and on this pie episode the guest chef explains the…
Jade So
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Eating with silvered cutlery

I have a set of silvered cutlery with which i often eat. I recently heard that the handles of a lot of older silvered cutlery is filled with lead or they are even made out lead. Am i safe to eat with them or should i switch out my cutlery?
LionIsLoose
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What is the maximum allowed temperature to cook onions saving the fructooligosaccharides?

Onions are a great source of fructooligosaccharides that are a natural prebiotic that beneficial bacteria of our gut microbiome feed on. Having read about this I have started eating raw onions but they can be nasty, as for boiled onions - that's…
Ivan
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Dried fruit and calcium levels

My daughter suffers from lactose intolerance and/or milk protein allergy (this has yet to be confirmed by a paediatrician due to the way the NHS works in the UK). I tend to bake fruit cakes and mix dried fruit in my cereal. My little lass likes…
Paul
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Why does the crust of a freshly baked loaf of bread become less crunchy/hard over time?

Something I noticed - I bought fresh bread today from a Polish bakery/deli. It was still warm when I bought it, so it probably just came out of the oven. When I got home and tried it, it was amazing. Just this incredibly satisfying CRUNCH with every…
Mikhail
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How to make Menthol crystal from mint leaves?

I have peppermint/mint growing in my garden backyard. I want to make mint candies for children and in one of the YouTube videos they have menthol crystal as one of the ingredients for mint candies so I am wondering how to make Menthol Crystal…
Deepak Jain
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preparing lupini beans?

Lupini beans are an ancient and delicious snack food widely consumed around the Mediterranean and elsewhere. But they naturally contain high levels of toxic alkaloids, so they require special preparation. Allegedly people used to suspend them in a…
mmw
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Baking soda for soaking chickpeas

This source claims that adding baking soda is crucial when soaking chickpeas. Is this true, and if so, what is the reason that this works?
Malper
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How can I find out if yeast or yeast producing are present in foods?

How can I know if a food or ingredient contains yeast or yeast-producing ingredient? My condition requires yeast-free foods and ingredients.
M. Warner
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