What Is Wet Grinder?

What Is Wet Grinder?

Last Updated on by Daniel Lawrence

Are you interested in knowing what wet grinders are and how they work? Then this guide is the right place to be. read through this guide, we’ve been able to simplify this guide, so it’s easily understandable.

What is a wet grinder?

A wet grinder can refer to either a tool for abrasive cutting of hard materials or a food preparation appliance used especially in Indian cuisine for grinding food grains to produce a paste or batter. A wet grinder for abrasive cutting uses fluid for lubrication or cooling, whereas one for food preparation uses water to combine with ground grain to produce batter.

Here are four different types of wet grinders for various purposes:

  1. With Conical Stones

Conical grinding stones fasten the grinding process. Depending on the size and usage, you can also choose a wet grinder with one, two, or more conical stones. Conical stones are more suited for daily household purposes to make batters.

  1. With LED

With wet grinders, it is essential to know when your battery has smoothened as per your requirement and consistency. Constantly turning it off and checking can be tedious and unnecessarily interruptive to the process. Grinders that come equipped with LED can help you with that. Plus, it will also indicate the power supply to the appliance.

  1. With Coconut Scraper and Kneader

Admit it, one of the least liked jobs in the kitchen would have to be scraping coconuts. Close shaves of cutting yourself and letting chunks of fruit fall into the output are the worst nightmares. Some grinders come equipped with (additional attachments) not only coconut scrapers but with dough kneaders as well. That’s something you ought to introduce yourself too!

  1. With Transparent Lids

Transparent lids help you keep a timely check on the progress of your batter. Those grinders also come with a spatula spot that allows checking the batter without having to open the lid. All this without having to open the lid as well.

Advantages of Wet Grinder

Here is a list of advantages that comes along with the wet grinders. Check them out now.

  • Indian Dishes – Wet grinders can help you in making several Indian dishes. These grinders can help you with clean preparations of the ingredients. This is one of the major advantages because of which you must consider purchasing a wet grinder. You would not have to rely on purchasing expensive pre-mix from the market which can also be stale.
  • Make it Easy – If you have to make a fine paste of anything then you can do it with the help of the wet grinder. It reduces the time that you would need to prepare the ingredients. Using the wet grinder is also very easy and you do not have to spend hours learning the process. With just a little practice, you can make the right mix and the right paste which will help you in cooking delicacies.
  • Efficient – Another point that we would like to mention about wet grinders is that they are efficient. Not in terms of energy consumption but in terms of the time that it would take to make the paste. Anything that reduces the time required to make the dishes is worth the purchase.
  • Affordable – You do not have to spend a lot of money on wet grinders anymore. They are really affordable now so you would not have to worry about spending a lot of money. It uses granite for grinding the ingredients so you do not have to replace the blades either which makes it durable as well
  • Uses Granite – One of the major drawbacks of a mixer grinder is that it uses a sharp blade and you need to be careful around them but the wet grinders use granite that doesn’t come with any such issues. They are a lot safer to use and that is the best advantage of the wet grinders.
  • Easy to Maintain – We have talked about this early and the wet grinders are easy to maintain. You can clean them easily as you can simply remove the jar and wash it under running water. You can even use a dishwasher to wash the jar. You do not have to worry about changing the blades and the blades going blunt either.
  • Powerful – These wet grinders are really powerful and this is yet another advantage of having them. You do not have to worry about using a mixer grinder with a blade to get the paste of the right consistency. The power of these wet grinders is enough to help you with your task.

Disadvantages of Wet Grinder

Let us now check out the disadvantages of the wet grinder so that you can judge the trade-offs of this appliance.

  • Power Consumption – The electricity consumption is pretty high and you might not like it. There is a certain level of heat generated during regular usage but that is normal. Since the motor is used to rotate heavy jars, it also consumes a lot of power to function.
  • Expensive Replacements – The replacement parts of the wet grinder can be expensive so you must always check about the warranty policies associated. Apart from this, you should also consider the cost of replacement vs the cost of a new wet grinder. The cost is up because of the powerful motor and the granite that is used.


Dry grinding is a relatively simple process. Within any number of specialized machines, material travels within a contained area and impacts other particles or rotors until it breaks into the desired size. During wet grinding, particles dispersed in the liquid slurry are crushed by the grinding media.

Dry grinding, in a jet mill, for instance, uses a single pass process; material goes in and is expelled once. Wet grinding is a recirculation process, with the slurry exposed to the grinding media over and over, for hours if necessary, until the desired particle size is achieved.

Although the grinding methods are different for each, one challenge is common to both dry grinding and wet grinding: the potential for wear on the grinding equipment that’s used to break down the material, or “materials construction.”

In dry grinding, there may be abrasives within the material that could, over time, damage the equipment. Wet grinding’s carrier fluid, or the material itself, must be chemically compatible; water, oil, surfactants, solvents can eat away at the equipment’s grinding media or parts used to agitate that media.

Dry or wet, the equipment’s grinding media mustn’t end up in the product.


When deciding between the two methods, the material’s final application (and its performance) is the number one determining factor.

For example, if a particular pyrotechnic material goes through dry grinding, the product has superior characteristics when compared to wet grinding. That alone may be enough to choose dry.

Target particle size is always the next consideration. In general, dry grinding gets particles down to single-digit micron size. Wet grinding regularly reduces particles down to the nanometer range. While dry grinding’s simplicity often makes it the first method considered if extremely small size is the goal, wet is the only way to get there.

But it’s not always that simple. Here are two examples of how to size considerations can affect the process.

  • Example 1: The end material must be wet, and the size goal is 10 microns (not especially small). So, dry grinding is the best method to use, with the material then needing to be mixed into a wet dispersion.
  • Example 2: The end material must be dry, and the size goal is 500 nanometers (quite small). So, wet grinding must be used, and the material must then be dried after reduction.

Example 2 leads us into the next consideration: cost.

If wet grinding is used to reduce particles to 500 nanometers, like above, but that product is NOT going to be used in a liquid base, it requires drying. Shipping a slurry that’s 75% water only to remove that water via a spray drier adds significant freight and handling expenses.

However, wet grinding is more energy-efficient, with up to 30% less power used to drive a wet mill. That kind of savings will add up over time.


If application, size, and cost don’t lock a project into dry grinding or wet grinding, it may come down to simple capacity. Can one grinding method (and equipment) better handle the required particle size in the quantities needed?

On that same line of thinking, is packaging a factor? Since grinding is continuous, packaging needs to be able to keep up at a determined number of bags, barrels, etc. per hour.

The need to formulate for dry or wet grinding may come into play. Obviously, it’s most efficient to include as much particle solid into the mix as possible. However, there may be a need for additional additives, which can be determined based on experience and trials.

Experienced providers of wet and dry grinding have quality assurance processes in-house, including analytical lab testing capabilities. While this may not determine one method over the other, it’s important to have these services available to ensure a quality end product.


This was all about the wet grinders and these things will help you in deciding if you need a wet grinder or not. Apart from this, you also need to understand your frequency of use before considering this purchase. You would agree with us that the advantages of a wet grinder are much more than the disadvantages.