Category "chemistry"

All else held equal, does a pot of tea have more total caffeine than a mug?

Let's say you have one tea bag and can either brew it in a mug of boiling water, or a larger tea kettle of boiling water. The temperature, steeping time, type o

What are the grey-black specks that appear when whipping cream in stainless steel bowl?

When we whip cream by hand in a stainless steel bowl, with a metal whisk, small grey specks, ~0.5-1mm in size, appear in the cream. The specks are squishy and c

Does the speed of opening of a bottle of wine influence its flavour?

While having a (good) bootle of wine at a friends place I've been told the following: The bottle should be uncorked slowly and silently, not to spoil its bo

Why use citric acid and sodium hexametaphosphate in cheese sauce?

I was watching a YouTube video from ChefSteps on how to make cheese sauce. They used sodium citrate and sodium hexametaphosphate. What are the reasons for inclu

How can I avoid getting swindled? How can I detect polyphosphates in fish fillets?

Fish fillets are treated with polyphosphates for several reasons, but mainly to increase their weight (and hence the profit). According to this FAO paper: The

Cooked meat diaper: toxic?

I accidentally left the meat diaper underneath my roast in a slow cooker. After 8 hours, the diaper is mostly disintegrated. I am able to fish out fragments, bu

Why don't other grain proteins behave like gluten?

There are many excellent explanations here (and elsewhere) of what gluten "does." What I haven't seen anywhere is an explanation of what makes gluten so specia

Coconut Water from White vs Brown Coconuts

The warning label on each coconut describes how to treat the water within each. The water on the brown coconut is to be discarded; the water on the white co

What can I do to prevent the gaseous side effect of sunchokes?

I'd love to eat sunchokes (aka Jerusalem artichokes or topinambour) more frequently, but the side effects (gas, abdominal discomfort) are a bummer. In a home ki

What is the maximum internal temperature of baked goods?

Obviously this will vary depending on the size/shape and ingredients used. But how hot does it get inside, say, a loaf of bread? A cake? How wide is the variati

Why are there holes in pasta dough when it is cold

I made some pasta dough this morning and put it in the fridge. When I ran the first batches thru the roller there were some holes in the pasta after it came out

Preserving Nerds / Pop Rocks so they activate in the mouth and not in the food

I want to be able to use Nerds and/or Pop rocks in cooking. However, unless the food is ultra dry, the food itself activates / dissolves it; I want it activated

When you try to "catch" yeast from the air: is it normal for the flour and water to split

I'm trying to "catch" wild yeast for the first time. 36 hours ago I mixed a cup of flour and a cup of water and left it out on a shelf with a paper towel over t

Why would parsnips make a beef stock not freeze?

I made a beef stock the way I always do, except that I added parnsips. Then I put the stock in the freezer and when I took it out, the stock was not frozen. It

Chemical process behind hardening ice cream

We made a simple ice cream by mixing whipping cream, sugar, and Nutella. After 5-6 hours (surely enough time for the ice cream to cool to the temperature of t

Adding cold water during cooking of beans and cooking time

After soaking dry beans, I place beans on heat, so they boil for couple of hours, and they cook pretty well. But if I add just one cup of cold water (at room te

How to increase the temperature of my double boiler?

I have a double boiler that I wish to use to prepare a batch of fudge. The recipe I am using calls for heating to 240°F (=116°C), but a double boiler is

Difference between fermentation and leavening?

What is the technical difference between fermentation and leavening? Both cause bread to rise. Does fermentation only refer to the chemical process of one su

Flavour enhancers [closed]

I've read that vanilla is usually used to highlight/enhance the flavour of chocolate, lemon juice the flavour of strawberries, and MSGs the fl

Aiding the Maillard reaction: Baking Powder or Baking Soda?

I will attempt to cook a Thai Green Chicken Curry. I'll be using cubed boneless chicken thigh which I would like to brown really well. I remember reading somewh