Compost mill best in test 2020 – Find the best compost mill

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Leaves filled with piles in the garden, branches that fly here and there after pruning, and other old weeds that you do not know what to make of. If you don’t have it, it’s usually the case that you have to burn everything somewhere or take it to a waste disposal station.

Instead, a compost grinder takes care of the branches immediately after cropping them and it is also an advantage if they are soft and fresh. After the branches have gone through a compost mill, you get chips left. With it you can cover land or spread out in your compost.

What to consider before your purchase of compost mill

When buying a compost mill, there are several factors that should be taken into account. On the one hand, the machine should be ergonomic and easy to use and, on the other hand, it should not be too loud. Then both yourself and the neighbors can get annoyed. The second thing to consider is what you want to grind down in your compost mill.

Is it only branches and if so, how thick are they? Or do you also want to put in leaves and other things? The chips that remain must also be laid somewhere and different mills grind different finely. Then you have to know what amount to grind down. You can figure that out a little roughly by looking at your garden size and how many trees you have on the plot.

It is usually better with a large and stable compost mill that does not risk falling when you sometimes move it. If you know that you have a lot of waste to be chipped, it is therefore better to choose a larger variant. At the same time, it should be easy to move.

For a compost grinder you may sometimes have to buy accessories such as collectors or pickers. You also usually need a protective cover and thick gloves when using it. Also, don’t forget your goggles and long-sleeved sweaters and pants so you don’t cut yourself or stick yourself on branches and other sharp material.

Make sure you never wear hanging details like laces, jewelry or scarves that can easily get stuck in the grinder. Also, don’t keep your head too close to the opening, as small splinters that can damage. When something gets stuck in the mill, never try to pull it out when the mill goes. Pull out the plug or turn off the machine first before you start poking. Some mills also come with safety devices to prevent this.

Two types of compost mills

There are two models of compost mills. One is a rolling mill and the other, a knife mill. A rolling mill grinds the branches and the waste between two rollers and a knife mill cuts the branches. Which type you prefer is a matter of taste but they have different advantages and disadvantages.

A rolling mill is generally more quiet and more stable and rarely stops, but they sometimes find it difficult to grind down larger wastes such as thick branches. Branches with tough bark or many murmurs, can thus become a problem for the rolling mill. Waste from whale mills can become more uneven and is therefore not very neat as mulch, but it works great in composting.

A rolling mill is also usually a little more expensive in purchase than a knife mill.
As you can guess, a knife mill is more suitable if you are going to have the waste for ecological mulch. It becomes smoother and more finely divided and it grinds branches and other things much faster than a rolling mill. The big drawback is that they often sound too much.

The blades in the disc spin and make a loud noise and this can get quite annoying. Another drawback is that the knife mills constantly have to get material into their disc to go as they should. Otherwise, there is a risk of stopping. If you work yourself in the garden, this can be stressful but if you two and one of you constantly feeds branches into the mill, this is a minor concern.

Also, do not forget that the knives in the disc must be removed and sharpened at regular intervals, otherwise they will no longer do any good.

Knifed mills vibrate more than rollers and then you have to think about buying a sturdy mill so that it does not run the risk of falling over. In our best in test on compost mills, we have listed both models for different needs.

Petrol-powered and electric compost mills

Compost mills can be petrol-powered or run on electricity.

The electric ones are thus quieter, which is probably appreciated by the neighborhood. Petrol-powered compost mills are good if it is large areas where an electrical outlet is not nearby.

Top 3 Best Compost Mills 2020

Choosing a compost grinder is not the easiest and there are lots of models out there to keep in mind. Hopefully, this best in test will give you a little more clarity before heading out into the world of compost.

A compost grinder should really facilitate the gardening so that you can continue with other chores, so making the right choice, is of great importance.

1. Stiga Compost Mill Bio Silent 2500 Rolling Mill

The compost mill from Stiga is our cheapest model in this best in test, and it is also our only rolling mill that we listed. This means that it is very quiet and pleasant to use.

It can take up to 60 L in its collection container and can handle branches up to 40 mm. The engine is 2500 W, which is an efficient engine and the grinder is electric. As an even advantage, there will also be a feeder so you don’t have to worry about your fingers.

Some believe that a rolling mill can not handle tough branches, but the fact is that this one is very good at coping with them, it is ideal for a garden with close neighbours because it is so quiet and it is also easy to move.

Although it is our cheapest model, it has a powerful engine and can take significantly more waste than the other two. This makes it a clear favorite in our best in test.

See the price here!

2. MTD Compost Mill S 2500

The second product in this compost mill best in test, is a model from MTD that is in the mid-price range. This is a knife mill that weighs 24 kg and comes with a 45-liter collector. So you don’t have to buy it.

It is also an electric model with an engine of 2500 W and although it is a knife mill, the sound level is not as high as you might think.

Mtd’s model can take branches up to 40 mm and can easily grind down gnarled branches and twigs into a finely distributed chips. The warranty period is two years and offers the buyer a new product or replacement of parts at no additional cost if something turns out to be defective.

This is a practical knife mill that is suitable for smaller gardens. The wheels make it easy to pull it and it is relatively stable despite strong vibrations. A good model when you want to work in the garden.

See the price here!

3. Black & Decker Compost Mill 2800W

Last out in this compost mill best in test, follows a model from Black & Decker. This is also a knife mill, with an engine power of 2400 W. One plus of the engine is that it has an overload protection if a branch or twig should get stuck in it.

Another advantageous aspect is that it is very easy to move. It has wheels and an ergonomically designed handle and can be easily pulled around as you wish. A collection bag of 35 L comes with the purchase.

This is a compost mill that has both advantages and disadvantages. It can’t handle much and the collection bag is only at 35 L, perhaps in the smallest team if you have a large garden. A big plus, however, is the easy movement, but this also means that it is not very stable.

It is ergonomically designed but you should think about where you put it and how much you feed into the grinder. The model is in the high-price range and we do not really think it is worth the price. It should be able to do more for that amount.

See the price here!


After compiling this best in the test of compost mills and testing the various models, we can conclude that the first compost mill from Stiga, is among the favorites. Stiga’s mill is the only rolling mill and we believe it does as good a job as the knife mills.

You can thus use your chips as mulch as a mulch or as compost material. The mill is of the same material as the other models and holds more waste but is not more expensive than the knife mills in the test, which is often the case.

Of course, it is extremely nice that it is so quiet and does not create so much vibration, although the sound level is not so incredibly different the other products in this best in test.

You’re the one who ultimately decides whether you prefer a rolling mill or a knife mill. If you think that a knife compost grinder always does the best job, you should of course go on that experience and if you like a rolling mill, then you should stick to it. So good luck with your gardening and hope you have enjoyed this compost mill best in test.

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