Vitamin C against blackening
You've probably heard of this tip: to prevent fruit or vegetables from turning brown or black, simply add or sprinkle lemon juice over them.
It's very effective, but why does lemon juice have this effect?
It's very effective, but why does lemon juice have this effect?
Last modified on: July 14th 2023
Vitamin C against blackening
Well, that's because it contains vitamin C, which acts as an antioxidant, not the lemon itself or its acidity.
Let's imagine you want to make a fruit purée, for a sorbet or a fruit coulis, pears for example: you peel the pears, remove the cores and blend the whole thing, it's very simple.
The problem is that the pear purée will oxidize very quickly and change color, while the taste will not change (or only slightly), but it will be less appetizing.
Here's the trick: add a pinch of vitamin C to your fruit purée (as you blend), and the result is spectacular.
Finally, a few examples of fruits and vegetables where vitamin C works wonders: avocados in guacamole, raw peeled purple artichokes (soaked in water with a pinch of vitamin C), strawberry or apricot coulis, etc.
As a general rule, whenever you have to soak something (vegetables or fruit) to prevent browning, systematically add a pinch or two of vitamin C to the water. You'll be amazed at how effective it is.
To sum up: a pinch of vitamin C in a preparation is highly effective in preventing the browning of fresh produce.
Let's imagine you want to make a fruit purée, for a sorbet or a fruit coulis, pears for example: you peel the pears, remove the cores and blend the whole thing, it's very simple.
The problem is that the pear purée will oxidize very quickly and change color, while the taste will not change (or only slightly), but it will be less appetizing.
Here's the trick: add a pinch of vitamin C to your fruit purée (as you blend), and the result is spectacular.
Finally, a few examples of fruits and vegetables where vitamin C works wonders: avocados in guacamole, raw peeled purple artichokes (soaked in water with a pinch of vitamin C), strawberry or apricot coulis, etc.
As a general rule, whenever you have to soak something (vegetables or fruit) to prevent browning, systematically add a pinch or two of vitamin C to the water. You'll be amazed at how effective it is.
To sum up: a pinch of vitamin C in a preparation is highly effective in preventing the browning of fresh produce.
Lasts posts
Cut twice as fast
When you need to cut something long into small pieces, for example chopped chives or the stem of a spring onion, there's a simple gesture that doubles your cutting speed. Let's see how.May 21th 2026653
The other use for bowl scraper
Your kitchen or bakery utensils may include a horn (left) or a pastry cutter (right). These practical utensils are normally used to scoop the contents of a bowl or salad bowl - the horn - or to cut dough - the pastry cutter. But they also have another, very practical use - let's see what it is.May 9th 20261,144
The strange foam of potatoes in milk
As you may have already noticed, when you cook potatoes in milk, especially in small pieces (slices or cubes) for a gratin for example, a surprisingly abundant white foam forms on the surface. Where does it come from?April 26th 20261,289
A little leftover butter
Very often when you're making a cake, your recipe will tell you to melt some butter and mix it into the batter - a classic for cookies, cakes, moelleux and the like. And every time you do this, you'll have to butter the baking tin to prevent the dough from sticking during baking. Naturally,...April 16th 20261,2665
A tablet holder
Perhaps you too cook by consulting your recipe on a tablet or phone, and putting it down on your worktop? It's practical, but not the best solution. Here's a look at how you can make an inexpensive, almost universal stand.March 14th 20262,0045
Other pages you may also like
Raising (or leavening) agents
When we want to make a dough or batter rise when baking, either in patisserie or bread-making, we need to use a raising agent or leavening agent, one of which is called leaven. In the context of baking, a raising agent is simply what "makes something rise". It is a substance which, when added to...June 16th 202158 K4.8
Stand mixer tools
Whether we call it a stand mixer, food processor, or simply refer to it by brand (Kenwood, KitchenAid, etc.), this machine is a valuable tool for amateur cooks, bakers or pastry chefs like ourselves. All these machines come supplied with 3 different tools. Let’s take a look at their names and...November 2nd 201939 K4.5
Cream and sauces
Have you ever wondered why making beautiful tasty sauces is so easy when you use cream? .October 15th 201224 K4.4
The secret of cooking until "done"
This is a real chef's skill: being able to look at a fish fillet cooking and say, "Stop – that's enough, it's cooked". I always admire this ability to see at a glance if something is done. It is what sets the professionals apart from us mere amateurs. And it's true that how fish is cooked is...November 26th 201222 K4.4
The green of leeks
We are all, consciously or not, very sensitive to the colour of our food. That's why a red strawberry will always seem more appetizing than a pale one, even if it's not necessarily true. This is true for red, but it is also true for the green of certain vegetables.March 30th 202021 K4.0
Follow this page
Receive an e-mail as soon as this page is modified or receives a new comment.
We'll never share your e-mail address with anyone else.
Alternatively: you can subscribe to the mailing list of cooling-ez.com , you will receive a e-mail for each new recipe published on the site.
The 1 comment already posted on this page