Can Pottery Go In The Dishwasher?

By Cory White
Can Pottery Go In The Dishwasher?

Are you a pottery enthusiast wondering about the best way to clean your beloved pieces? This question probably often arises: Can pottery go in the dishwasher?

Pottery can be dishwasher safe, however, its suitability largely depends on factors like the type of pottery, the quality and type of glaze used, and the potter’s specific instructions. Generally, high-fired pottery pieces with a lead-free glaze are typically considered safe for dishwasher use.

Join me in exploring the compatibility of pottery with dishwashers in this article, tackling the benefits, risks, and considerations involved, as well as the impact of heat, detergents, and materials. Let’s start!

Understanding Dishwasher-Safe Pottery

Dishwasher-safe pottery refers to specific pots that can withstand the heat, pressure, and rigorous environment of a dishwasher without getting damaged. Not all pottery is created equal and several elements come into play in determining whether a piece of pottery is safe for dishwasher use.

  • Production Method: The way pottery is made impacts its durability. High-fired pottery is often considered dishwasher-safe because it’s more robust and can handle high temperatures in a dishwasher.
  • Pottery Glaze: The type of glaze on pottery contributes to its dishwasher-safe property. Lead-free glazes that are high-fired offer a layer of protection to the pottery, making it resistant to the damaging effects of harsh detergents and high heat.
  • Manufacturer’s Instructions: Often, the packaging or the pottery item itself will indicate whether it can safely be placed in a dishwasher. It’s crucial to follow these guidelines to prevent unnecessary damage to the pottery.

Types of Pottery and Dishwasher Safety

Not all types of pottery are created equal, especially when it comes to dishwasher safety. The main types of pottery, including earthenware, stoneware, and porcelain, have different compositions and therefore varying levels of suitability for dishwashers:


This type of pottery is generally made from clay, fired at lower temperatures, which makes it porous and less robust. Given its tendency to absorb water, earthenware is typically not recommended for dishwasher use as it could chip or crack.


Stoneware is a dense, non-porous type of pottery that’s fired at high temperatures, giving it strong durability. Most stoneware is dishwasher safe unless it’s hand-painted or has a delicate design.


As a type of high-fired, non-porous pottery, porcelain is generally dishwasher safe. However, similar to stoneware, if it features delicate, hand-painted details, or gold or silver accents, it’s prudent to hand wash these pieces.

Glaze and Dishwasher Safety

ceramic glazing

The type and quality of ceramic glaze used on pottery plays a crucial role in decoding whether the piece can be properly cleaned in a dishwasher. The two primary variables to consider here are the glaze’s composition and firing temperature.


The contents of the glaze significantly contribute to a pottery piece’s durability. Lead-free glazes are generally dishwasher safe as they do not easily react with dishwasher detergents or hot water.

Firing Temperature

High-fired glazes that have undergone intense heat treatment are typically more durable. They create a sturdy, non-porous surface on the pottery piece, making it resistant to heat and pressure, hence suitable for dishwashers.

However, note that while the right type of glaze might make a pottery piece dishwasher safe, repeated dishwasher use may gradually wear down the glaze, which could expose the ceramic material underneath, compromising its look and lifespan. Therefore, treat glazed pottery, especially those featuring delicate or intricate designs, with extra care to extend their beauty and usability.

Risks of Putting Pottery in the Dishwasher

While dishwashers can be a convenient solution for cleaning, they do pose some risks to pottery. Here are some potential issues you might encounter when placing pottery in the dishwasher:

  • Glaze Deterioration: Dishwasher detergents can be quite aggressive, gradually eroding the glaze on pottery, making it dull, and potentially leading to chipping and cracking.
  • Thermal Shock: The rapid change of temperatures in a dishwasher can cause thermal shock, which can lead to cracks in the pottery.
  • Mechanical Damage: The vigorous water pressure and vibrations within the dishwasher can cause items to knock against each other, leading to chips, cracks, or even broken pottery.
  • Fading Colors: Over time, the intensity of the heat and detergents in a dishwasher can cause the colors on your pottery to fade.

Dishwasher Settings for Pottery

When cleaning pottery in a dishwasher, the selected settings can make a significant difference in preserving the integrity of your pieces. Here are some tips for optimizing dishwasher settings for pottery:

  • Gentle Cycle: Choose a delicate or gentle cycle. These settings use less intense water pressure and lower heat, reducing the risk of damaging your pottery.
  • Lower Temperature: High temperatures can cause cracking due to thermal shock. Opting for a cooler wash cycle can help prevent this.
  • Top Rack: If possible, place pottery pieces on the top rack where the water pressure tends to be less intense.
  • No Heat Dry: Avoid using the heat dry option found in many dishwashers. Let your pottery air-dry instead to prevent cracks from rapid temperature changes.

Impact of Dishwasher Detergents on Pottery

empty dishwasher

Dishwasher detergents can have a significant impact on the glaze and overall life span of pottery. Most dishwasher detergents contain alkaline salts which are potent cleaning agents, but can also be rather harsh on delicate items like pottery.

Alkaline Detergents and Glaze

The alkaline nature of most dishwasher detergents can gradually wear away at the glaze, leaving it looking dull and potentially leading to cracks or chips. This is especially true for pottery with more delicate or intricate glaze work.

Dishwasher Detergents and Colors

Over time, the strong chemicals in dishwasher detergents can cause the colors on your pottery to fade, reducing the vibrancy and richness of their appearance.

Pottery Not Suitable for Dishwasher

antique ceramics

Certain types of pottery and ceramics are not suitable for dishwasher cleaning due to their delicate nature or specific compositions. It’s advisable to avoid placing the following pottery types in a dishwasher:

  1. Handmade Ceramics: These often have delicate details that can be easily damaged in the vigorous environment of a dishwasher.
  2. Porous Pottery: Pottery types such as terracotta are more porous and therefore absorb more water. This can lead to dampness issues and possible cracks or damage when placed in a dishwasher.
  3. Painted or Decorated Pottery: Pottery with hand-painted patterns or delicate designs are at risk of losing their decorative appeal due to harsh dishwasher detergents and high temperatures.
  4. Antiques and Precious Items: Antique ceramics or precious pottery items should also be kept away from dishwashers to prevent any damages that could depreciate their value or ruin their aesthetics.


In conclusion, while many pottery pieces can handle a ride through the dishwasher, it’s key to understand that not all pots are created equal. Ultimately, understanding these factors and rendering proper care can protect your pottery, keeping it vibrant and intact for years to come. Navigating the world of ceramics might seem complicated, but if equipped with the right knowledge, you can ensure your pottery’s longevity and enjoy its beauty in the long run.

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