Tuesday, 10 November 2015

Everyone's a fruit and nutcase.

Although I work and live in Bournville, I had not been to Cadbury World, until a couple of weeks ago. I could tell you about the time all my friends went on a school trip and I seemed to be the only person at school that day, but I won't. I shall tell you a different story. My boyfriend came to visit me and it seemed like a good excuse for a visit. I've been sending weekly food parcels to various relatives and I thought my papa would appreciate a huge bar of fruit and nut. My boyfriend being allergic to nuts was freaking out as I bought the enormous bar. I was convinced fruit and nut had hazelnuts not almonds in, which would be fine as he can tolerate hazelnuts. Upon further inspection it would appear I was wrong... Almonds and death ensued (I joke. He is alive and well.)

Story over and we leap to the start of last week and our daily team meeting. Our conversations have been dominated by the fruit and nut scandal. As you may or may not know (where do you live if you haven't heard about it?) the fruit and nut recipe has changed,,. For the first time in 90 years! The horror.

Cadbury have altered their recipe to include BOTH raisins and sultanas

It would seem as though everyone jumped on the band wagon reporting this story. The headlines and comment sections on newspaper websites were most amusing.
But the real questions I hear you ask is will that really make a difference? What is the difference between the raisin and the sultana?

The answer to these questions are no and they are basically the same thing. 

As a company that is all about the consumer, all R&D work has some element of consumer screening. So before implementing this change  a consumer test of some 200 people was carried out. Only 10% were able to tell the difference between the traditional recipe and the new, sultana including recipe.

To this however, many would say, if it aint broke, why fix it? Supply chain and product demand plays a big part. This is where I must explain the difference between raisins and sultanas, something that formed a large part of our discussion of it at work.

So raisins and sultanas both start life as the same type of grape, the Thompson seedless. What differentiates them is their country of origin and the way in which they are dried.

Raisins
Sultanas
 Raisins, produced majorly in California, are dried naturally in the sun. This process leads to a hard skin and a smaller fruit. Because the fruit spends more time in the sun the sugars caramelize, resulting in a sweeter, darker end product.

Sultanas, produced in Turkey, are treated with a mixture of water, potassium carbonate and vegetable oil before being dried. Treatment with the alkali solution leads to mirco pore formation on the grape skin, allowing the fruit to dry quicker. Spending less time in the sun means that sultanas are lighter in colour than raisins.


A good description of the difference can be found here, as discussed on BBC Radio 5 Live.

Things may not be all bad with regard the inclusion of sultanas. If you search for sultanas and raisins, online shopping allows you to view the information about the product: ingredients, country of origin as well as the nutritional information. Upon inspection, sultanas have marginally less sugar per 30g serving than raisins, meaning the new fruit and nut may if fact be slightly better for your teeth... I am not sure it will be endorsed by dentists anytime soon though?!

I hope you have enjoyed reading this and are now a more informed consumer :) 



Wednesday, 14 October 2015

The Oompa Loompa Business Is Booming

I haven't blogged for a couple of weeks as I have been busy moving house and moving jobs. I am now a resident of the UK's second city, Birmingham. Woop woop (definitely a lot more going on than in Cumbria. So much so that trains were cancelled due to overcrowding... A thing unheard of at home.)

But on to my gainful employment. I am currently working for Mondelez, the company which owns Cadbury and Milka to name but a few of their many confectionery brands. I like to think of myself now as assistant to the oompa loompa... 

In just a few short weeks I have gone from chocolate novice to chocolatier extraordinaire... I joke, but I am hoping to share some of my new found wisdom and knowledge in the chocolate department. So stay tuned. 

On my way into work, on a sunny
Monday morning here in
Birmingham.
I apologise now if this post and future chocolate themed posts have an excessive use of the word chocolate, but there just isn't a suitable alternative. I don't think I have ever heard the word used as much in conversation as I have in the few last weeks! If my brain did predictive text, chocolate would definitely be up there along with excessive use of the exclamation point and lololololololol... 

So my first day at Mondelez I was presented with the chocolate Bible, a book call "The Science of Chocolate." A common welcome gift, I discovered after chatting to some of the interns, it has everything you could ever want to know about chocolate.

Reading through my new Bible, I was surprised by how much chemistry and physics are involved in the chocolate making process. Along with a little bit of wizardry, to cover the parts we don't quite understand yet, and you get the tasty treat we all know and love...

The Chocolate Bible


Let's start at the beginning. Let's talk about chocolate.

To Be Continued...

Wednesday, 16 September 2015

A (Not So) Lumpy Combination

I had my girlfriends over for a dinner party the other week and I was experimenting with cocktail recipes.

My all-time favourite cocktail is a Pina Colada, traditionally made with Malibu coconut rum, coconut cream and pineapple juice. Lacking the coconut cream I was left with two options:
  1. Add normal milk instead, or
  2.  Blend with a banana…
My concoction...

Not sure where I got the banana idea from but upon further thought it seemed like the best option.

So into my trusty blender went the rum, ice, pineapple juice and a banana. Two minutes later I had a creamy, fruity drink that somewhat resembled a Pina Colada. Given enough time it did separate out into layers, a juice layer and a foamy layer, but that was easily rectified with a wee stir.

There is a bar in my town that sells the most disgusting drink, the aptly named Cement Mixer. You get a shot of Baileys and a shot of lime juice. When the two mix in your mouth they curdle and you are left to swallow a lumpy mess…

This got me thinking, would milk do the same thing when mixed with the pineapple juice?
Yes, probably, but lets try it anyway.


Milk + pineapple juice = a lumpy mess... Ewwww

"Latte 025" by Kagor at the Ukrainian language Wikipedia. https://commons.wikimedia.org/wiki/File:Latte_025.jpg#/media/File:Latte_025.jpg

But why does this happen? What cause the liquid to lump transition I hear you asking. Well I will tell you.

Milk is made up of protein and fat suspended in a liquid. Milk is slightly acidic, with pH 6.6, it is this acidity that helps it maintain its liquid phases. As milk sours the pH drops and this causes lumps to form in the milk. The same thing happens when we add acid to milk, or in this case pineapple juice, with a pH 3. When an acid is added and the pH of the milk drops the negatively charged micelles, made up of the fat and protein, clump together. These clumps get large enough to see and are called curds.

There may have been some method in my madness when it comes to the banana. Bananas have a pH between 4.5 and 5.2. So when added to the cocktail mix they raise the pH and help prevent curdling!

All that was left to do was to enjoy the fruits of my labour... Drinks all round!!

The perils of drink...



Reference
Food and Foodstuffs - pH Values
Which foods are acidic?

Saturday, 29 August 2015

SPF Forever

The summer is drawing to an end and if like me you live in a part of the country where summer happens for a week in May then you might be wondering why it is recommended that you wear a moisturiser with SPF protection all year round. Seems a bit excessive doesn't it. But don't pack any your SPF just yet!
Whitehaven harbour at sunset.
Image: Jennifer Carroll

Monday, 24 August 2015

Alchemy Tricks

I have read and reread the All Souls Trilogy, by Deborah Harkness.
1st book in the series!!!
"Discovery of Witches Cover" by Source (WP:NFCC#4). Licensed under Fair use via Wikipedia - https://en.wikipedia.org/wiki/File:Discovery_of_Witches_Cover.jpg#/media/File:Discovery_of_Witches_Cover.jpg
On a trip back in time the main character, Diana Bishop, befriends the Mary Sidney, an Elizabethan woman with a passion for alchemy. As part of the story the two set out to make the tree of life... You'll have to read the book to see how the tree grows.

But as I was clicking through the internet, I stumbled upon the TheBackyardScientist's youtube channel and after watching some of his videos I found some alchemy among other exploding things.

How to grow a lead crystal tree! Watching the video you can see why some people thought this was magic.



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Wednesday, 19 August 2015

Bun in the oven!

What gives bread it's characteristic fluffy texture? Why does it rise up? Why do you need to prove the dough before baking? What happens during the all important baking step? And most importantly, where does that all important bread smell come from? How do supermarkets make their bakery aisle smell so inviting?

It's bread week here on Chemystified and I shall be having a go at baking my own loaf.

My loaf.
Recipe courtesy of the queen of baking Mary Berry.


Like many who watch the Great British Bake Off will know some of their creations are masterpieces of art. I am a firm believer that cooking is a science and that baking is just chemistry in action that we can enjoy with our eyes as well as our taste buds.

Figgy olive oil and sesame challah
Credit: Sarah R