What is Freeze Drying in layman terms?
Freeze drying, in simple terms, is a process of removing moisture from something (usually food or medicine) by freezing it and then slowly heating it in a way that the ice turns directly into water vapor without going through a liquid phase. Thus Freeze Dryer preserves the item for a longer time while maintaining its shape, taste and nutrients because it avoids the damage that can happen with traditional drying methods, like heat drying or air drying.
Which all food products can you freeze dry?
- Fruits: Such as strawberries, bananas, apples, and blueberries. Freeze-dried fruits make popular snacks and can be used in cereals or desserts.
- Vegetables: Examples include peas, corn, carrots, beet, bell peppers, okra, potato, onion etc. Freeze-dried vegetables are often used in soups, stews, and ready to eat/ready to cook meals.
- Dairy products: Like yogurt and cheese. Freeze-dried dairy products can be used for convenience and extended shelf life.
- Meats: Including beef, chicken and turkey. Freeze-dried meats are used in various dishes, including ready to eat/ready to cook meal packs.
- Seafood: Such as shrimp, fish and scallops. Freeze-dried seafood can be rehydrated for use in pasta dishes, soups, carresoles, ready to eat/ready to cook meal packs.
- Eggs: Egg yolk or egg whites can be freeze-dried and used in recipes.
- Desserts: Halwa, Sheera, Jalebi, Ice cream and even certain cakes can be freeze-dried, creating lightweight, shelf stable treats.
- Instant coffee: Freeze-dried coffee is a common form of instant coffee due to its convenience and long shelf life.
- Herbs and spices: Freeze-dried herbs and spices maintain their flavor and aroma and are used to season various dishes.
- Baby food: Some baby food products like fruit puree, yogurt bites are freeze-dried for easy storage and preparation.
- Ready-to-eat-meals: Freeze-dried meals often combine various ingredients, including meats, vegetables and sauces, to create convenient and lightweight options to carry.
- Mushrooms: Button mushroom, Cordyceps are extensively freeze dried to be used in soups and in wellness products. Freeze Dried cordyceps are used in cordyceps tea and premium chocolates.
What are various options to buy Freeze Dryer from DNS Global Foods?
- You can buy freeze dryer by making full payment
- You can buy freeze dryer in quick and easy EMI with zero interest (subject to bank guarantee for full amount)
- You can take freeze dryer on rent (subject to availability) for a minimum period of 12 months.
- You can buy a used freeze dryer (subject to availability)
What are the different capacities of freeze dryers that are available for purchase from DNS Global Foods?
Our freeze dryers are custom made for clients. The freeze dryers are built to specifications to manage the agreed input capacity of specified products as agreed with the clients beforehand.
Why should we buy freeze dryer from DNS Global Foods?
We have accumulated seven years of expertise in the freeze drying industry, initially focusing on the sale of freeze dried food products before expanding into our line of freeze dryers. Our unparalleled experience in handling a diverse array of freeze dried food products will prove invaluable as you embark on your own production journey.
What are the different types of freeze dryer machines that are made by DNS Global Foods?
Radiant type freeze dryer : In radiant type freeze dryer machine, food is frozen in an external blast freezer and the heat required for sublimation in the drying chamber is provided through radiation.
Conductive type freeze dryer : In conductive type freeze dryer machine, food is frozen externally or in the same drying chamber and sublimation heat is provided through conduction.
What are the different elements within Freeze Drying Systems?
Refrigeration system : Refrigeration system freezes the product and cools the coil to trap the moisture released from the frozen food in the drying chamber
Heating System : Heating system provides the necessary heat required for sublimation
Vacuum System : Vacuum system reduces the pressure in the drying chamber to enable boiling of water at sub zero temperatures.
Working of all the systems in harmony is required to remove the water from the product when it is in iced state and trapping that moisture on the vapor trap in the form of ice.
What is the best way to communicate and get a quick reply on queries?
Mail at dnsglobalfoods@gmail.com and share detail about the products you want to freeze dry and the input capacity required per day. We will carefully study your requirements and suggest the right equipment for you. Alternatively, WhatsApp us on +91-7227970076 for a chat reply.
Is Freeze Drying, Sublimation and Lyophilization same?
Yes. Freeze Drying is also referred as lyophilization or drying by sublimation. Freeze Dryers are also called as freeze drying systems, Freeze Dried machine and lyophilization systems. https://en.wikipedia.org/wiki/Freeze_drying
Do you sell Freeze Dryers from any marketplace?
No. We cater to requirements placed directly to us through the modes of communication mentioned on our website.
+91 7227970076
dnsglobalfoods@gmail.com
Do you buy back freeze dryers if we want to upgrade to a large freeze dryer?
Yes
What is the difference between home freeze dryer and freeze dryer from DNS Global Foods?
Our Freeze Dryers are made from industrial grade components meant for 24/7, 365 days operations. Since freeze drying batch time range from 10-20 hours, it is essential that components that are used are of top quality for hassle free operations.
What is the warranty on freeze dryer from DNS Global Foods?
1 year from date of dispatch. All components are sourced from reputed brands with presence in India.
What is the cost of freeze drying per kg?
Though the cost of freeze drying varies from product to product and is also dependent on seasonal factors like humidity, height from sea level etc. However, it can be safely assumed that it costs anywhere between INR 50 – INR 65 per kg for freeze drying 1 kg of meals with a 30% solid content.
How much time it takes to freeze dry?
Batch time for freeze drying is different for different products. However, batch time in commercial freeze dryer provided by us is much lower (50% or more) as compared to home freeze dryer which takes about 36-50 hours to freeze dry most of the products. Most of the products in our freeze dryers are done within 12-18 hours.
Is Freeze Drying costly?
Compared to conventional methods of drying like hot air drying, tray drying or spray drying, freeze drying is expensive as it happens under sub zero product temperatures and hence requires more energy. Suitable design and appropriate refrigeration system, vacuum system and heating system can help in energy efficient freeze drying process . Despite its higher processing cost, freeze drying remains the gold standard among all food preservation technologies. The nutritional value, product shrinkage and rehydration capabilities of final product is best when its freeze dried.
What is the smallest size Industrial grade freeze dryer available from DNS Global Foods?
Our Industrial grade freeze dryer range starts from 10 Kg input capacity onwards.
We are looking for used freeze dryer in India ? Can you help?
We also buy and sell used and refurbished freeze dryers. You can get in touch with your requirements at dnsglobalfoods@gmail.com