Benefits of Freeze Drying
How can we extend the life of fruit and vegetable but still maintain the nutrition & freshness – Welcome to the oldest technique of preservation – Freeze Drying.
What is Freeze Drying?
Fruit and vegetables are made up of 80% water, this is what gives them their shape, texture and juiciness. Unfortunately, it’s also what allows them to ripen, and subsequently spoil, with the introduction of mould.
We’ve all had the best intentions early on in the week of buying tons of fruit and vegetables to consume in our juices and smoothies only to find the remnants of rotting produce when we don’t get through it quick enough and end up with all that waste.
The freeze drying process Blendi uses today hails from the 15th century when the Incas used to leave their food out overnight in the freezing Andean night time temperatures and during the day the strong sun would dry the moisture from the produce extending their shelf life.
Blendi adopts this very same process, well the modern day version where our fruit and vegetables are picked when ripe, and then quickly frozen (same day) to lock in the nutrients and then dried to preserve.
In short, we extract the water and say to you when you feel like making your smoothies just add back the water.
We at team Blendi say
“Simply Pressing the Pause Button on Nature Until you are ready to Press”
*Research conducted by Sheffield Universtiy in 2013 measured the nutrients in freeze dried , chilled and fresh Strawberries, found that refrigerated fruit retained only 20% of their antioxidants. While freeze drying no significant impact on their nutrient content, the freeze dried strawberries retained all their vitamin C and polyphenols and 92% of their antioxidants.
What we do
Handpicked Fruit & Vegetables
We Freeze Dry to lock in the freshness
Natural Goodness Locked In
Blendi’s Freeze-Drying Process
Think it sounds too simple to be true?
Here’s the scientific freeze-drying process step-by-step to give you the specifics:
- Firstly, fresh fruit and veg are picked when they are at optimum
- Quickly Frozen to lock in the nutrients
- The water content is then turned to ice
- The air pressure around the piece of food is then lowered which turns the solid ice into vapour
- This process is called sublimation
- Sublimation trumps any other drying process because it dries the fruit and veg without heating it which preserves the
nutrients, taste and colour like the day it was picked. Leaving you with natural fruit and veg by way of sublimation
Handpicked Fruit & Vegetables
Ok, how long do you have?
The freeze-drying process gives the edge over frozen or dried food like a jet-powered engine in a bicycle race. The powerful nutrients found in fruit and veg are delicate that hate the heat so when they’re exposed to a thermal drying process they run for the hills leaving you with vacant fruit and veg that’s had a nutrient exodus. Thankfully this is not the case with freeze drying. Here are just a few of the benefits of the freeze-drying process.
- Heat sensitive vitamins like pro-vitamin A (beta carotene) and vitamin C (ascorbic acid) are preserved at near pre-frozen levels meaning when you have a Blendi smoothie, you get all of those vitamins uncompromised to be heat
- The freeze-drying process also maintains the pre-frozen levels of fiber, which ticks your gut-health box and helps prevent against metabolic disease like heart disease and diabetes
- Fruit and veg also contain anthocyanins, flavonoids and polyphenols, which will all stay right where they belong during the freeze-drying process, these are what give fruit and veg their characteristics and health benefits
- Take for example Blendi’s ‘Purple Rain’. It is packed with tasty blueberries which have anthocyanins: sitosterol, stigmasterol, and kaempferol, they might be a tongue twister, but they also protect against the development of tumours and also give blueberries their beautiful vibrant colour
All You Need To Do
Blend & Enjoy!
Are freeze-dried fruits and vegetables good for you?
Yes! This is the same as asking are fresh fruit and vegetables good for you. The freeze-drying process removes none of the anti-oxidants and fiber and only a miniscule amount of certain vitamins, meaning freeze-dried fruit and vegetable are just as good for you as freshly picked ones.
Are there any chemicals used in the freeze-drying process?
No. There is nothing added to fruit and vegetables during the freeze-drying process. It is simply the lowering of the temperature and subtraction of water. So you can enjoy your Blendi safe in the knowledge that you’re not consuming any chemical nastiness at the same time. Just fruit and veg as nutritious as the day it was picked.
What is the difference between freeze-drying and drying?
Moisture content and nutritional values are the two main differences. The freeze-drying process removes 98-99% of the moisture from fruit and vegetables, a process carried out while the items are frozen, thus keeping in them in their raw state and preserving all but 0,2% of the nutrients.
The drying process allows air to evaporate the water (only up to about 90%) from the produce thus somewhat wilting them and losing some of the nutrients.
What is the difference between freeze-drying and dehydration?
The dehydration process is a laboratory drying process that further removes the moisture content of foods (up to about 95%). But as with air drying, the food loses nutrients from the thermal damage during the dehydration. Dehydration tends to result in the loss of Vitamins A and C, thiamine, riboflavin and niacin. The freeze-drying process will preserve all vitamins, making it a more nutritionally sound choice for preserving your fruit and veg.