<< Return to Industry Reflections

Are you over-preserving?

Many of us know what happens when you mistakenly under-preserve a biological product: the bottles start to bulge or suck-in (the latter can also be caused by fragrance issues), fungal growth starts to appear or it starts to have an unpleasant odor. But do you know what signs to look for if your product is over-preserved?

There is usually one noticeable sign of an over-preserved product: the customers who were consistently using your product haven’t placed an order in a while.

Understanding Preservatives

The preservation system in your biological product is a double-edged sword. If you under-preserve, you get the problems mentioned above. But if you over-preserve, your product won’t work, or it will have a significant delayed reaction. This can lead some of your repeat customers to think that the product no longer works.

Over-preservation occurs when too high of a concentration of preservatives is present in a product. The preservatives are meant to be diluted to a predetermined point as indicated by the number in front of the X on the label (i.e. a 10X product would be 1 part product, 9 parts water). Diluting to the proper point allows the product to activate and begin working. If over-preserved, the product isn’t diluted enough to allow activation.

Effects on Application

The below graph (Figure 1) shows an example of an over-preserved product. As you can see, the properly preserved product began to grow 16 hours sooner than the over-preserved product. Depending on the application and holding time, a delayed start like that of the over-preserved product can kill your treatment success. Grease traps, multi-story drain treatments and septic piping are a few examples of systems that have narrow activation windows where over-preservation can limit your repeat business.

At MDG, we’re dedicated to honoring the brand and reputation of our partners. Proven Success is our measure of a job well done and is our promise. As one of our partners, we’ll show you how to properly dilute products so that you can avoid getting over- or under- preserved products. If you suspect issues with your current supplier, reach out to us and we’ll see what we can do to help.

If you’d like to learn more about our products and support services, send us a message and one of our representatives will reach out to you.

Figure 1 – This graph illustrates how an over-preserved product can have a negative impact on product application. If over-preserved, the product may not work, or it will have a delayed reaction which can have a negative impact on treatment.

Search Insights
Recently Posted Insights

The Commercialization of Microbial Solutions

As a Bacillus manufacturer, we work to grow our partners’ pure single-strain Bacillus cultures and scale the process so that they receive exactly what they need. Our success in the commercialization of microbial solutions comes from our trusted process and our...

How to Handle Odors Within Septic Systems After Spring Thaw

Spring’s warmer weather and longer days are always welcome after a cold winter, but for septic tank owners and operators, this seasonal transition can bring a significant problem: odors. Now that spring thaw has occurred and the heat of summer is setting in, septic...

In-Field and In-House Expertise in Wastewater Treatment

When your wastewater customers are facing challenges, you want a partner with proven success and extensive expertise in wastewater treatment. At Microbial Discovery Group, we can be that partner. MDG stands as a leading expert in bioaugmentation, holding in-field and...


Since the completion of our Oak Creek facility in the fall of 2022, we have steadily grown our capacities and capabilities as a trusted provider of Bacillus-based solutions. We are excited to announce that our growth has given us the opportunity to expand our...

Upcoming Webinar: Creating Quality Microbial Products

Producing high-quality microbial products for industrial, institutional, and consumer applications is essential for our partners. In our upcoming webinar, we will explore the critical aspects of microbial product development and how we ensure quality products for your...

Proven Success Treating Sludge with Biotifx®

If your customers are working in the biological wastewater treatment industry, chances are they’re dealing with the challenges of organic sludge. Sludge, the waste components left over after the wastewater has been treated, is a constant expense for facilities, and...

Sludge Tanks 101: Treating the Waste

Throughout the wastewater treatment process, certain components are left over that get separated from the treated water. This collection of leftovers is called sludge, which is then further treated in tanks. At Microbial Discovery Group (MDG), we have explored the...

Lagoons 101: Identification and Long-Term Treatment Approach

Lagoons and ponds have been used for treating wastewater for over 3,000 years. Today, there are over 8,000 wastewater treatment lagoons operating in the United States. One appeal to using lagoons is that they generally require less energy than other treatment systems...

Industry Reflections

Bacillus, Distinguishing Species and Strains Part I

Bacillus Species Identification Methods: Definitions, Pros, and Cons Understanding the effectiveness of Bacillus products is easy to understand because in many cases we can visibly see the difference. But, it is hard to see what exactly makes up the product. Like most companies, you have probably asked suppliers “what

Fats, Oils and Grease: Bacillus vs. The Alternatives

What do many commercial, residential, industrial and institutional facilities all have in common? If you said a door, you’re technically correct; but for the purpose of today’s article the correct answer was Fats, Oils and Grease (FOG)! All of your customers facilities have drains, and drains are sought-after hosts


What is bioaugmentation?

At MDG, we continue to discover all the possibilities to treat wastewater with Bacillus. Through years of research and development, we’ve found that bioaugmentation is the answer for wastewater treatment. Bioaugmentation is the process of adding scientifically selected organisms to a microbial community to enhance that community. The term bioaugmentation

Pulp and Paper Lagoons Problems

It’s been a tough few years for the pulp and paper (P&P) industry. With an increase in foreign competition and a lowered demand for paper, many facilities have had to tighten their belt. One of the most probable victims of these cuts are the wastewater treatment systems. Wastewater needs

Supplying Quality: One Strain at a Time

In the large-scale liquid bacterial fermentation world, there are two primary ways to grow bacteria: as individual strains or in combination with others. At Microbial Discovery Group, we grow one strain at a time as it has served us well over the past decade. Truth be told, if I

News and Insights

The Benefits of Liquid Dosing

Many wastewater distributors are faced with finding an efficient product to combat common challenges such as sludge, fats, oils, and grease, and odors. Bacillus-based products have been proven highly effective and reliable to reduce, eliminate, and alleviate these challenges in the wastewater market. Did You Know These Products Come in

Are You Offering a Bacillus RV Septic Treatment?

Outdoor activities like RV camping are an ideal way for travelers to escape indoor isolation. It’s all about packing up the necessities and hitting the open road. Living out of an RV camper for any amount of time will likely include eating, sleeping, and using the bathroom. These are

Top 5 Tips to Prevent Septic System Back-Ups

According to the EPA, about 1 in 5 US homes depend on septic systems, and with the uptick in professionals working from home, septic tank maintenance and backup prevention tips are among some of the top online searches. Septic service companies are in high demand, more people are home

FAQs on Bacillus Strains in the I&I Market

1. How do MDG’s Bacillus strains help reduce a variety of organic materials such as debris, decaying food, human and pet waste and FOG? MDG offers Bacillus-based products with different Bacillus strains that have a wide array of capabilities. Bacillus are living organisms and need food to live and multiply. They break down and consume