Acid whey purification – maximise the return on your resources

Acid whey purification – maximise the return on your resources

Explore what to do with whey from yogurt, curd, or quark

Did you know?

Acid whey can be processed into a high-profit product by using MEGA Electrodialysis

What to do with whey from yogurt

Why

MEGA whey processing technology

With increasing customer demand for dairy products such as yogurt, Greek yogurt, cream cheese, and cottage cheese, dairies and cheese factories are facing the growing problem of what to do with the acid whey that is still considered an unfortunate by-product of dairy production.

Many dairy companies are therefore looking for a way to turn this once-wasteful raw material into a new source of income. Explore how acid whey can be transformed into exciting new products that offer a solution to the growing problem of waste in the dairy industry.

What is acid whey

What is acid whey

Acid whey is a by-product of Greek yogurt, soft cheese, or quark production. Due to the high acidic properties with pH ranging from 4.7–5.3 caused by a high number of organic ions (lactate and citrate) and a large mineral content of approximately 9–11% ODB, considered typical for natural acid whey, with total solids of 5.5-6.5% (TS) make it difficult for further processing. It can’t be evaporated without using special techniques with high operational costs and due to very low sensory attributes, it can’t be reused internally either.

Acid whey causes environmental issues. Currently, dairy companies often pay for it to be drained or dumped across farmers’ fields. Some use the acid whey to produce methane and take it to anaerobic digesters where it is fermented to produce methane. Despite this, these uses are a waste of this valuable substance.

Find out more about whey protein powder
Acid whey vs sweet whey

Acid whey vs sweet whey

While the dairy industry already processes sweet whey on a large scale, which is then found in many products such as baby food, sports nutrition, and others, acid whey is more of a liability for many producers.

Although both are made up of 95% water, the other components of acid whey, such as calcium, phosphorus, lactic acid, and its salts, cause problems when trying to turn it into something more than the waste from Greek yogurt or cream cheese production.

Boost your business with acid whey

What to do with acid whey

What to do with acid whey

MEGA has developed a technology based on the electrodialysis process which is transforming acid whey into a new high-profit product.

Electrodialysis is an elegant solution to deal with the problematic composition of acid whey. MEGA electrodialysis units remove minerals and organic ions (acids) and achieve customer-specific pH values by integrated pH correction. The results of the acid whey demineralization process make the final product suitable for food products.

MEGA electrodialysis units can process natural acid whey or whey concentrated by reverse osmosis (RO) or nanofiltration (NF) up to 22% TS, which is preferred due to the partial removal of monovalent ions and organic ions. Thanks to the higher conductivity of the feed after the concentration, MEGA ED units can work at the maximum efficiency to achieve high demineralization rates like D90 (1% Ash ODB) without using ion exchange even for acid whey.

Electrodialysis allows evaporation and crystallization of acid whey

Electrodialysis allows evaporation and crystallization of acid whey

After demineralization, acid whey can be easily evaporated, concentrated, and spray dried. The MEGA ED technology helps to improve the performance and yield of the evaporator and crystalizator, respectively. By removing lactates and its salts, the stickiness of the spray dried product is highly reduced.

Boost your business with acid whey

Boost your business with acid whey

MEGA's technology offers new opportunities for dairy companies to use acid whey to maximize their production, increase profits and significantly reduce waste.

Acid whey contains the same minerals as milk, which means it offers the same benefits to bones, teeth, and general health. But it is often disposed of in waste streams or sold for little or no profit to farmers for use in animal feed.

Thanks to MEGA electrodialysis acid whey can be converted into high-value consumer products and, in turn, enable dairies to boost their efficiency by using 100% of their milk and not just a portion of it.

Acid whey uses

Acid whey uses

Demineralization of acid whey make it possible to transform it into a valuable food supplement with wide selection applications in high quality and nutritious food and dairy products.

Possible applications include cream cheese, processed cheese, dips, beverages, stirred yoghurts and desserts.

Request a free quotation for your whey processing project

Our experts are ready to answer your questions and find the best solution for your acid whey demineralization project.

Please, fill out the form below. We will reach out to you as soon as possible.

Interested? Contact us.

Michal Jirdasek

Michal Jirdasek

Key Account Manager

+420 606 387 947 michal.jirdasek@mega.cz
Ales Platzer

Ales Platzer

Sales Manager

+420 702 176 317 ales.platzer@mega.cz
Tereza Hudakova

Tereza Hudakova

Sales Manager

+420 771 122 363 tereza.hudakova@mega.cz