Let's Learn about Mold!

Hey everybody! My name is Paul Oppliger and I am the QA/QC Manager here at Olympia Provisions. Day in and day out, I make sure that the products we produce and send to you are as close to perfect as possible. I also help to resolve the problems and feedback we hear from you, to ensure that we are making the most delicious products we can. One of the most frequently asked questions we get is "what's the powdery stuff on my salami?" This is a question I think about everyday, so to help you all understand, I am going to give you a look inside my world and answer some questions you might have!
First, what is that powdery stuff?
Last time you received an Olympia Provisions salami you probably noticed that the outside was coated with some white, blue, grey or green fuzzy stuff. Your assumption was right, that is mold. But not "that" kind of mold. The mold we use, penicillium nalgiovense, is integral to our salami. Like the mold on a fine cheese, p. nalgionvense gives our salami a special character. We intentionally put mold on the outside of our salami ​as part of our curing and fermentation process. We call it ​our "Ho​use Flora​".​ ​It's unique to our process and is nothing you should be afraid of​.​ ​I​t's something we love and that sets us apart. Unlike ​some salami makers, we keep ​our molds, rather than brushing them off and dusting the products with milk or rice powder.
What's the point of the mold?
"House Flora" serves many purposes in our process. ​The first reason ​we use mold is to protect the salami from any competing​ mold ​or bacteria growth during the drying process. ​Spraying the mold on the salami inoculate​s​ it with good mold and drives off any potential bad mold that might exist in the environment. Our mold army vanquishes any potential undesirables through sheer numbers! Another key function of our mold is ​​to regulate the drying of the salami. The mold keeps the surface of the salami from drying out too quickly or slowly​, making for a creamy, supple finished product. ​Finally​, the mold on the  exterior of our salami contributes to the overall flavor by mellowing out the acidity produced during fermentation. We could cure our salami differently and not use mold, but it would drastically change our product. 
It looks different than last time!
Milk and rice powders are always consistent and white, but they aren't natural or wild like our "House Flora." Although we use the same species every time we inoculate our salami, we can't say that it is going to act the same way each time - and that's part of the nature of dealing with a natural product. Each year, we watch it change with temperature, humidity and the evolving nature of the mold. We control it as closely as we can, but we still find that there is natural variation. Which is why there is such a range in color and appearance, from white to green to shades of dark grey and black. The black mold especially can seem off-putting, but it isn't unsafe to consume, and again, that's part of ​the wonder of ​dealing with a natural product. 
How do I take care of this stuff?  
​Although we're talking about mold specifically here, the mold and salami are one beast. ​What's good for the mold is good the salami. The important thing to remember about salami is that an exchange of oxygen is vital, the molds need air to keep growing. When they no longer are getting oxygen they die off.​ At home, I ​loosely wrap my salami in ​it's paper, then fold it​ in an unsealed Ziplock​ bag. Stored in ​the​ crisper drawer​ ​of my home refrigerator ​it's cool, but not too cold, and ​not cut off from airflow. In this manner your salami can last for days or even weeks.​ The molds are delicious, meant to add flavor and totally safe to eat. I always say that it is up to ​individual taste, but in no way would consuming it be harmful, and if desired, it can easily be peeled with the casing. ​

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