Best Compost Grinder for Home Use – Buying Guide and FAQs

We tested out several compost grinders. The Vitamix FoodCycler proved itself in durability and performance. The FoodCycler is the best overall for its ease of use and short compost cycles.

Each compost grinder on our list has been compared against other machines on the market, and the ones we have on our list, have come out on top. It isn’t easy to search every machine on the market and compare it against all others, so we’ve made it so that you don’t have to. 

Keep reading to see which grinder is the right one for you.

6 Best Compost Grinders Reviewed


#1. Vitamix 068051 FoodCycler FC-50

In a matter of hours, the Food Cycler Platinum converts your food scraps and reduces them up to 90%, creating a nutrient-rich soil perfect for feeding your garden. The Food Cycler is simple to use. Throw your food waste into the bin and push the go button without adding anything else such as enzymes or pellets.

After using this food grinder, you will have healthy fertilizer. It is easy to clean up this compost grinder. The grinder has a removal bucket that is dishwasher safe. The food recycler is lightweight and odorless. Keep it anywhere in or out of your home without attracting pests.

We like this compost grinder because it has small size, which can be easily fit for your daily composting needs if you live in an apartment. And as an electric composter, its price is relatively higher than traditional composters.

Pros:

  • The cover is secure and locks
  • Three hours per compost cycle
  • Easy to use

Cons:

  • Composting chamber is small
  • Can be noisy
  • A little bit expensive


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#2. Miracle-Gro Small Composter

The Miracle-Gro composter is a 27.7-gallon composter that allows you to put it in smaller spaces. The Miracle-Gro compost bin is best kept outdoors, either on your balcony, in your garden, or anywhere that you have some room.

This powerful composter turns your organic waste into fertile compost that can be added to your garden soil. The Miracle-Gro small composter comes with a unique aeration system that uses inner mixing bars to speed up the process of decomposition to allow you to grow a healthy garden.

Compost all year round with the sturdy design of Miracle-Gro’s composting machine. The side-locking mechanism is sturdy, and enabling loading and unloading the composter is easy. Maintains an airtight seal, is BPA-free, plastic is protected from UV-rays, all means you won’t have any harmful toxins in your compost.

Pros:

  • It fits into the tiniest spaces
  • Unique Miracle-Gro aeration system
  • Mixing bars inside help speed up decomposition
  • It has a tight seal
  • The heavy-duty manufacturing design allows you to compost all year

Cons:

  • The design could be better


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#3. Miracle-Gro Dual Chamber Compost Tumbler

The Miracle-Gro Dual Chamber Compost Tumbler comes completely assembled and is low-maintenance. Miracle-Gro is top of the line for composters which is why there are two on our list. The Miracle-Gro Dual Chamber has two compartments to make composting more efficient.

With the dual chambers, you get to add composting materials to one side while the other side is ready to go. Internal mixing bars promote decomposition so that you can add fresh compost to your garden in 4-6 weeks.

With this dual chamber compost grinder, it is simpler to cook the compost with no digging, turning, or mixing it by hand. Open the door and add your scraps and follow up by turning it in every few days, only 5-6 times.

With Miracle-Gro, you will have a healthier garden that produces better produce in no time. This compost grinder is good for outdoor and indoor use. 

Pros:

  • Easy assembly
  • dual chamber
  • Short cook time

Cons:

  • The door may be difficult to open
  • Doors may be flimsy


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#4, NEW OXO Good Grips Easy-Clean Compost Bin

The New Oxo has an oval shape and measures 7.75 x 7.3 x 7.6 inches and has a capacity of 1.75gallons. Such a size fits even a busy kitchen. Its 0.74kg weight and design allow it to balance on the countertop. Besides, it has an easy-to-grip handle that also folds down.

Its lid stays open and hence makes it convenient to toss in scraps. And the removable cover and the countered bottom make emptying the bin trouble-free. It’s also available in 4 different colors. Hence you can select the color that blends with your kitchen wall paint. 

Its smooth interior supports easy cleaning as less food builds up on the walls. Its rim design allows you to tuck a composting bag in the bin without slipping down. 

And when you close the lid, it hides the composting bag and presents a neat appearance. The cover also flips down and thus locks the odors. Further, it uses a soft seal design. So, it allows oxygen and thus cuts down on the smell. 

 Pros:

  • Stays balanced on countertops
  • Easy to clean
  • Presents the neat look
  • Sturdy handles that also folds down when not in use

Cons:

  • Relatively small capacity

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#5, Joseph Joseph Totem Max Compost Bin

The Joseph Joseph Totem Max measures 15.35 x 14.5 x 32 inches (lid closed). From such measurements, it provides a 16 gallon capacity. Although it has a high volume, it uses a vertical space-saving design. 

That is, it has dual chambers; at the top and another one at the base. Each has a volume of 8 gallons. From the top, you can access the inner detachable bucket. The bucket has angled corners, and thus it’s easy to remove.

 When you open the lid, you can attach a bag to the provided hooks so that it doesn’t slip down. And when you need to remove the liner, the air holes make it trouble-free. 

The stack design makes emptying easier. That’s because the drawer at the base pulls out completely. Its wheeled base makes it effortless to transport even when it’s full of trash. 

The kitchen compost grinder taps on the airflow technique. So it channels air through the carbon filter. By doing so, it cuts down on moisture levels and therefore minimizes odor. 

Pros:

  • Requires footprint of space
  • Has wide opening that supports easy filling
  • The robust frame and steel compartments
  • Carbon filter minimizes unpleasant smell

Cons:

  • Expensive
  • The lid opening mechanism requires improvement 

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#6, WORX WG430 13 Amp Electric Leaf Mulcher

The WORX WG430 is a powerful outdoor leaf mulcher that weighs only 20lbs. It uses a 13-ampere motor that runs at 8500rpm. When you feed in the grass or leaf clippings, the powerful motor mulches at the rate of 53 gallons of leaves every minute. 

After mulching the leaves, it channels them down to the universal bag holder underneath. Hence collecting the ground leaves is less demanding. It can chop 11 bags of leaves to fit into one bag. So the mulched leaves fit even the small composting bins. You don’t require any tool to assemble the mulcher. And during the off-season, it disassembles into easy-to-store parts. 

It also has a large opening and 13 inches cutting diameter. Therefore it accepts a large volume of leaves. One of the essential features we admire about the electric leaf mulcher is the Flex-a-Line bladeless mulching technique. Besides safety, that also makes the cutting line system quick to replace without using any tool. For further convenience of use, the compost grinder has an oversize on/off switch. 

 Pros:

  • It has a powerful motor
  • High mulching ratio
  • Rugged design
  • No-tool assembly

Cons:

  • The leaf mulcher registers reduced performance on wet and thick leaves

check price and availability on Amazon


Compost Grinder Buyer’s Guide

What should you look for in a compost grinder? There are some things to consider in your search for a grinder that suits your needs and space.

Size

A determining factor when choosing a compost grinder is the size and where you will put it. Some grinders fit on your countertop or mid-range that fit under sinks, to larger models that can be kept outdoors or in a garage.

When you choose a grinder, consider the size of the garden that you need to feed the soil. If you have a small area to cover, you want a smaller size versus a larger size for a bigger space. You do not need a big unit taking up space if you aren’t going to utilize the capacity or use the compost it produces.

Compost doesn’t just happen overnight; it can take a few weeks to produce, so you want to make enough to cover the area you are working with all at once. 

Assembly

Depending on the model of compost grinder and the extent of the machine’s abilities, it will already come assembled, or you will need to put it together yourself. To put the compost bin together, you may need to purchase the appropriate tools

If you are handy with putting together various products, then it may not be a big deal to you whether it’s an easy assembly or not. However, if you are not particularly handy, then you’ll want pre-assembled or easy assembly.

There are some companies that can help assemble the item for you, but they will most likely charge a bit of money for this. Most composters are easy enough to put together.

Rotation

The ease of rotating your compost heap plays a significant role in how quickly you can promote decomposition and how healthy your compost will be when it’s finished.

Some traditional methods require you to turn your compost by hand or use a special aeration tool to do so. By finding a compost grinder that offers fluid turning of the barrel, you can take a lot of the legwork out of producing healthy compost.

Rotating your compost is extremely important to the overall health and process of decomposition. Depending on the size and material in your compost heap, you should turn it every few days to once a week. This allows air pockets to form within the compost, which gives microbes the oxygen they need in order to live and function. Healthy microbes then break down the organic matter turning it into nice, healthy, nutrient rich compost. 

If you don’t regularly turn your compost, you can experience a few issues such as overheating of the pile, over consumption by microbes, moisture build up, or compaction. These things will all slow down the decomposition of your pile which could lead to odors, mold growth, or pests. 

Aeration

Airflow is critical for composting because it helps break down the scraps, but some units don’t provide proper aeration or any at all. Compost will break down much faster and more evenly if there is ample airflow, and the amount of ventilation needs to be sufficient for the size of your machine.

Some composting units have an aeration bar set up on the inside of the machine that helps by making it harder for smells or pests to get in or out. Some units have screens on the side to allow air to get in without the compost getting out. 

Adding and Unloading Compost

When you are adding or unloading compost, the doors make it easier or more difficult for you, so they make a difference. It makes sense that if you are composting a large amount, you will want larger doors. If the doors of the composter are not big enough, you will run the risk of spilling food everywhere.

The grinder height also matters because it needs to be tall enough to put a bucket under it to avoid spillage when the compost comes out. Locking doors are necessary so that the grinder doors do not open and cause spillage.

Dual or Single Chamber

Choosing a smaller grinder will help you save on space, but you won’t have the benefit of the dual chambers. The dual chamber allows you to have double batches of compost on the go at all times. While one side is completed, the other side is just beginning. You can empty either chamber, which will have an exit and access point, so you can empty one side and refill the other.

The dual chamber is good for someone who has a larger garden and greater composting needs. If you are only tending to a small garden plot, then a single chamber compost should do just fine.

Materials

When you are choosing a grinder, make sure the materials used to make it are durable and will last a long time. You want to make sure the grinder’s body is made of durable, UV protective plastic, and the frame should be made of stainless steel.

Most compost products will be made of recycled plastic and should be made of long-lasting, anti-eroding materials on the parts that will be used excessively, like the doors. You do not want the hinges wearing down or breaking due to wear.

If you are going to keep your compost grinder outdoors, make sure that the materials are rust and corrosion-resistant.


FAQs

If you still have some questions about the best compost grinders, we’ve put together a list of the most frequently asked questions one has before making a purchase. 

Should you grind the Compost?

Grinding your compost will certainly help speed up the process of composting, but it is not necessary. The composting will happen whether or not you grind the compost. It just may take a little longer.

Depending on how often you need new compostable material and the type of materials you add to your compost will help you decide if grinding them is the right option. Grinding your composting material is an extra step, but it helps speed up the process considerably.

How do you grind compost?

One of the best ways is to use a compost grinder. However, you first have to let the compost reach its full curing state. After that, you add the compost in bits or all at once. If your grinder has high capacity then you can add the compost all at once. Otherwise, grind compost in bits. But some models of compost bins produce well-ground compost. In such cases, you won’t have any use of a grinder. 

Can I just bury my compost?

Yes, you can bury your compost underground in the kitchen garden and wait for the decomposition to take place. However, you don’t have to bury the kitchen refuse directly to the ground. Instead, first, stack them in a plastic container. And ensure that the plastic container has an air-tight cover. Then bury the plastic bin in your kitchen garden. Then give it some time to decompose.  

How do you shred kitchen scraps for compost?

You can use a shredder to chop the kitchen scraps into smaller pieces. There are many handheld devices for shredding kitchen wastes. And in case you don’t have a shredder, you can even chop them into smaller pieces with your knife. 

After shredded kitchen scrap then occupies less space in the compost pile. But don’t forget to turn the pile often. The shredding speeds up the composting process and produces fine compost. However, it isn’t a must to shred vegetables and fruits. The worms disintegrate the kitchen wastes, though it takes a longer duration. 


Our Verdict

Whether you are a novice composter or a seasoned pro, choosing a composting grinder will take time and research to make sure you choose the one that is good for you. The Vitamix FoodCycler is our top choice, but it’s up to you and your composting needs to determine what suits your soil. 

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The Green Thumbs Behind This Article:

Tiffany Lei

Tiffany Lei

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