Milk Chillers in India

Posted Wednesday, 06 June 2018 09:53 by Martin King in Process Chiller 101

India is the highest milk producing country in the world. In the Indian economy, milk is the second-largest contributing national product, coming in second to rice. In order to keep the milk supply up with market demand, Indias dairy production will definitely need to step it up!

Over the past few years, India’s population has grown tremendously. With the growing population has come an increase in jobs and income for most families. India has also hopped on the health wagon and has become much more aware of the importance of a healthy lifestyle. All of these factors have created a bigger demand for high-quality milk and milk products in India. Retail shelves in the country are now making space for healthier products such as UHT milk, cheese, yogurt, and ice cream.

With all of these changes in the country, a need for dairy development and process chillers has risen immensely.

Healthier Products Provide New Growth to Dairy Processors:

Experts agree that in order to meet India’s evolving dairy needs, India must be able to provide a long shelf life for their dairy products. Most healthier dairy products rely on quality raw milk. The quality of raw milk can be determined by its MBRT level.

A high MBRT level of milk guarantees it’s a good quality product. The Methylene Blue Dye Reduction Test is a quick method to assess the quality of raw and pasteurized milk. This test has been used in the past as criteria for raw and processed milk.

In India, there are millions of individual dairy farmers. Most of these farms sell milk to the nearest dairy collection center before it is transported to the dairy processor’s facility. The challenge these farms face is how to maintain the quality of milk in the hot climate of India. Not only is the climate a problem, but India is also known for its unreliable electricity supply, and other factors such as inefficient milk chillers.

How Milk Chillers Are Helping:

The average shelf life of fresh pouched milk that the top dairy distributors in India sell is about 2-3 days. This short time span creates a problem in distributing milk to deep rural markets. New process chillers (such as Legacy’s) can change the shelf life of the milk to about 7 days.

Milk chillers can chill milk even in the most remote places where electricity is touch and go. Milk chillers are based on thermal energy storage technology, which has dual benefits. Milk chilling systems can instantly cool milk from 35 degrees Celsius to 4 degrees Celsius without the need for a diesel generator as a power backup source. Eliminating the use of diesel generators provides cost efficiency as well as an environmentally safe alternative to dairy processors.

The help of a process chiller ensures that by the time milk reaches dairy processors, it continues to remain within the mandated quality and temperatures.

For more information on how a process chiller can help your dairy business, visit our website at

Is Your Glycol Cool Enough?

Posted Thursday, 19 April 2018 10:27 by Martin King in Process Chiller 101

Throughout history, one thing every beer drinker can agree on has is that no one wants to be served a warm glass of brew. The whole point of a beer is to go get that frosty, refreshing kick we all desire, especially on a hot summer’s day.

That's why a process chiller, such as those manufactured by Legacy Chillers, is so important to the success of restaurants and bars. This is especially important in a city that prides itself on great beer service, such as Portland, Oregon. A big part of a good quality chiller is its ability to dispense glycol that delivers perfectly chilled beer. An icy cold beer is always in order to quench your customers' thirsts and keep them coming back for round after round of the good stuff. Since glycol is such an important role in the cooling process, it is imperative to make sure your system is always working to its highest potential. The easiest way to keep your glycol dispensing system performing is to perform scheduled routine maintenance.

If your process chiller is not performing well, here is a list of troubleshooting tools to try before calling in the experts:

-Is the cover of your glycol bath closed? If you leave the cover of your glycol bath open, you can allow water vapor to dilute and weaken your glycol.

-Is your glycol bath the right temperature? Make sure to regularly check the temperature of your glycol bath (weekly is ideal, but no less than biweekly) to ensure that it's within the optimal range as noted by the manufacturer. Many glycol chillers are equipped with a temperature gauge on the outside, but if you are experiencing issues, it's worth your time to manually measure the temperature with a thermometer.

-Is your beer being dispensed at the faucet at the right temperature? Even if the chiller unit is reading the correct temperature, you should still check the temperature of the beer coming out of the faucet.

-Is the motor running smoothly? Observe your glycol chiller and listen for any signs of malfunctioning. If you hear anything out of the ordinary, make sure to call a technician immediately to avoid any larger issues down the road.

-Are the pumps operating correctly? Ensure that the connections are tight and that all the insulation is accounted for.

-Is the condenser free of dirt and other obstructions? Check your condenser every three to five weeks and clean as necessary. The condenser won't require a thorough cleaning with every check, but every so often, you'll want to remove the grills to get access to the condenser fins.

-Is there any damage to your trunk lines? When properly installed, your trunk line is very durable. However, over time, it's possible to experience ice buildup due to insulation damage.

If you go through the entire checklist above and still have problems that persist, make sure to call a maintenance technician. If you are in the search for a new process chiller, visit to get your free quote today!

Beer Fermentation 101

Posted Friday, 06 April 2018 11:04 by Martin King in Process Chiller 101

Everybody loves an ice cold beer. BBQs, late night bonfires at the beach, and gatherings with friends all call for a cold brew. With summer right around the corner, these social get togethers will become more frequent.  Wouldn't it be nice to know just how America's favorite social drink is made?  It starts with fermentation.


Fermentation is a process where yeast turns the glucose in wort to ethyl alcohol and carbon dioxide gas. This process is what gives beer its alcohol content and carbonation. The fermentation process time varies depending on temperature, type of yeast, and if you are making a lager or beer. Most beers made with dry yeast will take 1-3 days to ferment, and about 8-14 days if liquid yeast is used. Lagers on the other hand take quite a bit longer during the fermentation process.  Lagers need to ferment at a cooler temperature and can take up to two weeks or more.

Temperature Control:

Temperature plays a big role in the beer fermentation process. Temperatures should be between 68 degrees and 72 degrees for beer, and between 45 degrees and 55 degrees for lagers. Fermenting at a higher temperature than recommended can produce fruity-flavored esters and harsh-flavored fusel alcohols. Also if the temperature gets too high, fermentation may stop altogether. It is very important to keep your beer or lager at the right temperature while fermenting.  This can be quite difficult without the use of a process chiller.

Keeping Brew Cool:

Before the invention of the process chiller, beers were brewed during cooler months and stored in cellars or caves to maintain proper temperatures. Today we are lucky enough to have the help of chillers to keep brew at the correct temperature year-round.

Air Conditioning:

Another simple method of keeping your brew cool is to place it directly in front of an air conditioning vent. This will allow your brew to receive the initial cool blast of air before it circulates through the building. Of course this is not a great method when producing large amounts of brew, but would work okay in a home brewery.


Some home brewers also recommend placing beer in a basin filled with ice water. However the ice will need to be replaced at least twice a day in order to ensure proper cooling.

If you're looking to produce a high-quality brewed beverage, it's important that you choose a proper temperature control method.  Legacy Chiller Systems has lots of options that will keep your brew at precisely the correct temperature with very little effort. If you're serious about quality brewing, consider adding a Legacy Chiller to your beer fermentation process.

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5 Manufacturing Trends Coming This Year

Posted Friday, 30 March 2018 10:20 by Martin King in Process Chiller 101

The long-term direction of the manufacturing industry is in the process of being changed by some cutting edge trends. These trends are expected to have a significant impact this year and in years to come. Industry professionals in manufacturing should always have a strong understanding of the industry and what the future of manufacturing looks like.
There are so many new and exciting things happening this year in the manufacturing sector.  Here is a list of the top 5 trends this year:

Efficient Thinking
One of the biggest challenges manufacturers face today is determining how to achieve operational goals such as reducing costs, improving efficiency, increasing safety, supporting compliance and growing product innovation.
Companies are beginning to recognize the value of thinking strategically and operationally, as well as having a better understanding of the importance of data management. Gathering operational data, analyzing it and leveraging valuable information from manufacturing processes is creating positive change in the industry.

Next Level Industry
The rise of the manufacturing industry has given manufacturers more opportunities to utilize advanced manufacturing capabilities throughout the product lifecycle.
Recent advances can increase production processes, efficiency, and improve safety on the factory floor.
Manufacturers can improve productivity and efficiency, business needs, development of new services, and increase the speed products are brought to the market.

Additive Manufacturing
There's no doubt about it, the increasing acceptance of additive manufacturing processes has led to a widespread adoption in the manufacturing industry.
For example, heavy equipment manufacturers produce machinery with product lifespans measured in decades. From its beginnings as a plastic prototyping process, additive manufacturing has grown and developed greatly over the last 30 years or so, and doesn't seem to be going anywhere.

Groundbreaking advancements in technology are propelling manufacturing into a new age of automation. Robotics, machine learning and artificial intelligence are said to be taking over the manufacturing industry in the years to come.
Companies will soon have to decide what to automate (and what not to automate) in order to keep their company running at its highest potential.
Technology makes it possible to not only automate tasks on the show floor, but also to automate jobs in other areas of a business, such as maintenance, management and administration.

Augmented Reality
This one is still debatable.  The concept of augmented reality is definitely not new to the manufacturing industry, but this new technology is still in its early stages and its potential impacts on the manufacturing industry have yet to be realized.
AR is a trend on the rise, though. Many companies are currently exploring the use of wearable technologies, including head-mounted devices integrated with AR. These devices provide employees access to data that can help perform a certain task while staying safe on the job.

Some of these manufacturing trends might still seem quite futuristic, but that's really not the case. AR is currently being used in manufacturing facilities across the United States and around the world. And companies utilizing it are experiencing a number of benefits, including cost reduction, speed increases, fewer errors, and overall improved safety.
Here's to a bright future for the manufacturing industry.  The industry is on the rise and there's still much more to come.

A Dairy Chiller's Past

Posted Thursday, 22 March 2018 11:01 by Martin King in Process Chiller 101

Years before the invention of pasteurization and refrigeration, people had to find ways to store dairy production and keep it cool while moving from place to place. In this day and age, finding a way to keep dairy products cool seems almost impossible.  Believe it or not, there were some very effective methods used in the past. Some are even still used today in certain areas of the world.

Kefir Grains:

Culture complexes of yeasts and bacteria are used all over the world.  Yeast and bacteria create kefir, yogurt, and cottage cheese. When kefir is added tomilk, something amazing happens. These cultures go to work by speeding up the decaying process of milk but keeping it safe to drink.  "Good" microorganisms grow strong enough to stop "bad" ones from growing. Nowadays, there are still many products available in supermarkets with "friendly bacteria" or “probiotics."  These products are derived from the traditional cultures, and are packed with health benefits.

So what exactly is kefir? Kefir is a grain that is loved by most health food enthusiasts. Added to milk, kefir grains act on sugar to produce acidic byproducts. Kefir drinks can be made and kept at room temperature.


Lacto-fermentation is a process that results in yogurt.  Yogurt can naturally be made on a windowsill. Using a different starter culture that usually includes lactobacillus bulgaricus and streptococcusthermophilus can create a homemade refrigerator, and is still used today in some poor countries.

Slate and Terra Cotta Fridges:

In Victorian times, manypeople would use a huge slab of slate on which dairy would have been stored. In warm climates the cooling properties of slate were great at keeping cheese and milk at a low temperature for almost as long as in our modern day refrigerators.
A DIY fridge is actually quite simple to construct. All you need is a few unglazed terra cotta pots and sand. This cooling method has been used in countries around the world for hundreds of years.

Given that the refrigerator is only an invention of the last sixty years in human history and that it consumes up to 20% of our household's energy, we could do well to learn how to live without it for the sake of the planet and discover a range of new tastes and techniques in the process.

To find out how a process chiller can help you visit