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Application

Drying and concentration for food and beverage

Instant coffee, plant extracts, juices and purees, egg, seasonings and flavourings. We turn a liquid into a powder with the colour, aroma and solubility your customer demands, and we build the machine that does it.

sanitary
product contact finish
1,500 kg/h
evaporation capacity
trials
on a real sample first
24 h
to answer your enquiry

Liquid to powder in seconds, with outlet temperature control to protect colour, aroma and solubility.

Products we process

Each one brings its own difficulty, and that is what shapes the machine.

Coffee and soluble extracts

Extract concentration and drying with care for the aroma. Bulk density and solubility of the powder are what the buyer looks at.

Juices, purees and fruit

Sugar-rich products that soften with heat. They need a carrier, outlet temperature control and a chamber designed for it.

Plant and botanical extracts

Yerba mate, tea, herbs and botanicals: drying at controlled temperature so actives and colour survive.

Egg powder

A microbiologically sensitive product: sanitary finish, CIP cleaning and full process traceability.

Seasonings, soups and flavourings

Blends and liquid bases taken to a powder of even particle size and good flow for automatic packing.

Hydrolysates, yeasts and plant proteins

Heat-sensitive products, where the short residence time of spray drying works in your favour.

What sets the quality of the powder

In food, the machine is not chosen on capacity alone: it is chosen on what the powder has to be.

Colour

Set by the temperature and the time the product spends hot. Higher inlet air produces faster, but can darken the powder.

Aroma

Volatiles are the first thing lost. The answer is lower outlet temperature, fine atomisation and encapsulation where the product justifies it.

Solubility and flow

They follow particle size and shape, and that is set by atomisation: disc or nozzle, and at what pressure.

Final moisture

Drives shelf life and packaging. Agreed with the customer and confirmed by trials on a real sample.

Hygiene and traceability

Sanitary finish on everything touching product, no dead zones, CIP cleaning built into the line.

Cost per kilogram of powder

Set by how much water enters the dryer. That is why, when the product comes in dilute, the evaporator is what makes the plant pay.

From trial to plant

With food it pays to measure before investing. The usual path is this one.

  • 1You send us the product and tell us what powder you need
  • 2We run it on the pilot plant and obtain the drying curves
  • 3The powder is assessed and the conditions adjusted
  • 4The industrial machine is scaled from measured data, not estimates
  • 5Manufacturing, erection, commissioning and operator training

The equipment

Frequently asked questions

Can a sticky or high-sugar product be dried?

Yes, and it is one of the most common cases: juices, purees, honey and sugar-rich extracts soften with heat and stick to the chamber wall. It is solved with the right combination of outlet temperature, chamber design and sweeping, and with a suitable carrier such as maltodextrin. This is a case where it pays to run trials before specifying the machine.

Does spray drying preserve aroma?

Some volatiles are always lost; the difference is in how the job is run. Outlet temperature is lowered, atomisation is tuned and, where the product justifies it, the aroma is encapsulated on a carrier. In coffee and extracts this is the decision that sets the quality of the finished product.

What final moisture can be reached in the powder?

It depends on the product and how hygroscopic it is. Most food powders are run at single-digit figures, and the exact number is agreed with the customer because it drives shelf life and packaging. Trials on a real sample are what confirm it.

Is pre-concentration necessary?

When the product comes in very dilute, yes: the evaporator removes water at a fraction of the dryer’s energy cost, and it also allows a smaller dryer for the same output. In juices, extracts and coffee it is standard practice.

Tell us what you want to take to powder

With the product data and the capacity you are after we answer within 24 business hours, with a first technical assessment and a trial proposal where it applies.

Or reach us on WhatsApp or at info@witech-dry.com.