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The 50 Shades of Dried Black Soldier Fly

Brown Colored Black Soldier Flies in Pupae Stage

Perhaps 50 shades comes as a bit of an exaggeration, at least when it comes to dried black soldier flies, or any grubs. The range of colors that're likely to be observed when it comes to grubs ranges from golden to dark brown. So what does the difference in color between all these grubs mean? Is any one type better, more nutritious, or healthier than another? Why would there be any difference in the first place if we're talking about the same species of grubs - namely, black soldier fly larvae.

Without going too deep into the science and feed processing technology, and in order to avoid having you fall asleep while reading the article, a straightforward answer to all of these is that color doesn't give you sufficient info to know whether one type of grubs is better than another. A cheap and commercially available coloring can do the job and paint the grubs with whatever color is needed. This means that you shouldn't fall for marketing gimmicks such as "golden grubs are better" or "dark brown grubs are better". 

What does matter is that you check:

(1) Ingredients. What is in the box you're buying?

(2) Processing technology. How are the grubs made?

(3) Appearance. How do the grubs look like? (and do not limit this check to checking the color!)

Let's look into each one of these in greater detail:

(1) Ingredients.

In the case of our Supreme Grubs products, the sole ingredient in all of our products is 100% dried black soldier fly larvae. We do not add any colors, fillers, additives or preservatives to our larvae. The only downside of this is that the grubs won't last you for years, and you should try to use them up by the expiry date printed on the box, all the while ensuring they're stored in a dry and cool place.

(2) Processing technology.

Another crucial aspect is ensuring that the processing technology isn't an overkill - meaning, that it doesn't overly burn the larvae and all the macronutrients and minerals it contains. Our larvae is microwave dried and golden colored, and is processed within a few seconds in a large oven, ensuring the nutrients, natural goodness and bioavailability of a larvae are preserved. 

Airdried black soldier fly larvae tends to be a bit darker but even though the exposure to heat for airdried larvae is longer, the heat is of much lower temperature. This ensures that even in case of airdried black soldier fly larvae, nutrients are preserved and none of the natural goodness of a larvae is lost. 

Airdried larvae, although we currently are not selling it, is not an inferior or a superior product. It's just that the larvae is made using a different processing technology but the nutrients are all preserved.

(3) Appearance.

There are a couple of things to look at.

Firstly, a good larvae will not be crushed but whole. Of course, a few crushed pieces here and there are normal because of the handling and transportation, but the majority of larvae should be whole.

Secondly, while bigger is not always better, if larvae is both darker and smaller, it could be that it was collected during the pupae or pre-pupae stage which is means that it has grown out of the larvae stage, during which it is the most nutritious. Again, there could be a few darker and smaller grubs here and there but majority should still be big and plump, which would show that it was collected and processed in the larvae stage.


Next time you are buying grubs, as we mentioned, looking at the color won't tell you much about quality. You should try to understand how the grubs were processed, using which technology, and also give it a closer look to better understand if there could've been a risk of any nutrients being lost during processing, or if the grubs were collected and processed too late and after the larvae stage. While we didn't cover 50 shades of black soldier fly larvae colors, hope that the article made you better equipped with the knowledge needed to choose the best grubs for you!

Who Can I Feed Supreme Grubs Black Soldier Fly To?

Cute dog looking like he wants to play or maybe expecting a treat

Insects can be an important source of food for many living animals, and humans as well. If this sounds too crazy of an idea it is likely because you don’t see yourself craving for a dinner of roasted grubs with blueberry balsamic glaze. 

This is likely because we as humans start by trying to imagine things from our own perspective. Grubs have always been and are still considered to be an important dietary source of protein and calories for many species. Not all grubs are the same however - just like a cow, a horse and a cat don't have too much in common, we shouldn't equate all grubs - whether it be black soldier fly grubs, beetle grubs - also known as mealworms, house fly grubs or others.

Supreme Grubs black soldier fly larvae can be fed to various species, including birds, chickens, ducks but also dogs, cats and other farmed animals such as fish and pigs. 


Not only are Supreme Grubs (Black Soldier Fly) considered to be good for your chickens, but they are also one of the most nutrient-rich bugs around. The main benefits are the high amount of protein, very high calcium and richness in methionine and leucine amino acids, all of which are great for laying, molting hens or hens in need of an immune boosting treat.  


Ducks are omnivores who naturally love to consume insects. Many of the benefits of feeding black soldier flies to your ducks are similar to the benefits of feeding the larvae to your chickens. A fun fact is that the usually shy ducks will come running for black soldier flies once they realize they are being “served”.


Birds are known to have a very fast metabolism. As such they are in constant need of energy, and along with the carbohydrates in the form of fruits, grains and berries, they are known to enjoy insect larvae. While protein is an essential, the good amount of fats also provide the birds with the energy they need.


Yup, your pet dog can also consume Supreme Grubs! The main benefit of black soldier flies in your dog’s diet is their richness in protein and the fact that they contain beneficial omega 6 & 9 fatty acids. Include grubs in the diet gradually and mix with other feed until you get to about 20% of dried larvae to 80% of regular feed by weight.


Interestingly, unlike dogs, cats do naturally eat insects, though they are not a main source of nutrition. The benefit of introducing black soldier fly in cat’s nutrition lies mainly in the high protein content of black soldier fly larvae. The percentage inclusion of grubs in your cat’s feed will be slightly lower than that suggested for dogs, which is less than 20% compared to the rest of the feed.


Supreme Grubs are a great feed for your pigs. Being ferocious eaters, they grow very fast. The typical carbohydrate heavy feed can be supplemented with our grubs and can help the pigs put on more muscle and stay healthier. If you are moving from a soya based feed, the benefits will be in the better and complete amino acid profile of black soldier fly protein. 


One of the greatest mysteries of this world is why we as humans thought that raising fish to be fed fish which is then fed to humans is a good idea. It is a waste of our resources, damaging to the environment and ecosystems. Instead, opting for, if not full replacement, then at least an inclusion of black soldier flies in the diet of both tropical and farmed fish, can prove to be beneficial for the environment. It can also help to ensure your grandchildren are able to enjoy fish on the plate just like you did (because if we continue killing fish to feed the fish, we may eradicate life from our oceans very soon).


Various reptiles, from bearded dragons, to geckos and chameleons are all known for their appetite for grubs, which they can eat live or dried. The benefits of grubs for reptiles are that they promote growth and can be a nutritional staple due to protein and much needed calcium content.


Black soldier flies are loved by many different amphibians. While live grubs would be preferred, dried grubs may be used as well. Keep in mind however that grubs are not a feed replacement for your pet but a supplement to the regular feed. 

For any of the pets or farmed animals, if you want to introduce grubs to their feed, start off by adding a small portion of grubs to their diet. You can then eventually substitute their feed or supplement their diet with Supreme Grubs, depending on the species. 


Grubs, and in particular Supreme Grubs dried Black Soldier Fly Larvae (BSFL) are a perfect treat or feed for many pets and farmed animals. And while it will take some time for grubs to become a mainstream food in human diets, we are already witnessing their inclusion in the diets of other species such as chickens, ducks, birds, pigs, fish, dogs, cats and many more!

Black Soldier Fly - The Super Insect To Save the Planet

Earth soil with a fragile planet signifying us needing to protect the environment

More and more of us are trying to lead a healthy life while at the same time minimizing the negative impact our practices may have on the environment. Black soldier fly has the potential to help us address many of the current issues humanity and the environment is faced with.

It starts with replacing, whether fully or partially, the feed given to chickens, ducks, pigs and fish, and other pets and switching it to black soldier fly based feed. This is helpful because grubs can be grown on organic waste which would otherwise end up on landfills. The next application is in using insect produced frass as a natural fertilizer. The last application is probably something we are a bit far off from, but will come in future, which is the introduction of the insect in human foods. 

Black Soldier Fly Larvae in Animal and Pet Feed

Black soldier fly larvae is an environmentally friendly source of protein. Soybeans and fishmeal, which are currently used in feeds for various animals and pets are far from being environmentally friendly. 

Soybeans require vast amounts of land and water, and soybean fields have led to the destruction of unimaginable amounts of trees and the disappearance of wildlife. 

Fishmeal on the other hand is produced in a paradoxical and extremely wasteful way because more than 80% of fish caught for fishmeal processing are actually fish that could be fed directly to us, without being fed to yet another fish. 

The harvesting of black soldier flies does not have any negative impact on the environment, quite the opposite. Black soldier flies help us by decomposing organic matter, which would otherwise be sitting on a landfill emitting all sorts of toxic gasses, hurting us directly as well as polluting the environment. BSF larvae are one of the most efficient creatures when it comes to the conversion ratio of biomass into feed, but that also means we need more BSF farms to help us process the waste we are currently generating.

However, it’s not just the environmental aspects which put black soldier fly at the forefront of the battle of the feeds. Its nutritional properties are far better than those of soybeans and may be a good full or partial replacement for fishmeal. 

Black Soldier Fly Larvae in Human Food

Consuming black soldier flies in future may be a part of a healthy and sustainable diet. All of us at Supreme Grubs have tried these grubs and some continue to use them in their diet. But we are aware that this step, the introduction to the human food chain, may take some time. This is both due to the regulative framework as well as the attitude most of us still have when it comes to the topic of consuming insects as food. It is likely that the introduction will start slow by introducing the powdered version of the insect as opposed to the whole insect to avoid the “yuck” factor. 

The benefits of a switch from standard meats to insects, in order to obtain sufficient protein and micronutrients are vast. If the amount of resources needed to grow the food we typically eat now could be liberated, we would likely see the reversal of the many negative environmental changes we are witnessing now. Wildlife and life in the oceans would flourish, if only we are fast enough to act now.

Black Soldier Fly Larvae to Tackle Organic Waste

Black soldier flies are essential decomposers in breaking down organic substrates and returning nutrients to the soil. The effects of accumulating organic waste on our landfills are detrimental to human health directly because the inhalation of particles has a negative impact on health. At the same time, these landfills emit tons of methane gas into our atmosphere every day, further aggravating the climate conditions as methane is a greenhouse gas 80 times more powerful than CO2. 

They also have the ability to break down the bacteria in their food. This is why they are considered to be sanitary. Once they’ve completed their digestion, there are no bacteria found in their waste. This is likely due to the lauric fatty acid they are rich in, a fatty acid with powerful antimicrobial effects. Some of these antimicrobial characteristics may be passed on to the animals or pets feeding on grubs, which brings us back to the topic of how great black soldier flies are as a traditional feed substitute.

After processing the black soldier flies, their leftover food, their poop, any remaining eggs, and even some remaining flies are excellent sources of protein for your plants and a great natural fertilizer. In short, there’s absolutely no waste from BSFL production.  


Black soldier flies, through their inclusion in feeds, future introduction to human foods and in processing of waste have an extremely positive impact on the environment. You can play a role in supporting the black soldier fly economy by purchasing these incredible creatures and starting to use them.