Last updated: August 11, 2021

Welcome to our large lava stone test 2022. Here we present all the lava stones we have tested in detail. We have compiled detailed background information and added a summary of customer reviews on the web. We would like to make your purchase decision easier and help you find the best lava stone for you. You will also find answers to frequently asked questions in our guide. If available, we also offer interesting test videos. Furthermore, you will also find some important information on this page that you should definitely pay attention to if you want to buy a lava stone.

The most important facts

  • Lava stones are mainly used for barbecues. However, you can also use them as decorative objects or as a substitute for topsoil in the garden.
  • Unlike conventional charcoal, lava stones for the barbecue can be reused as often as you like. The only important thing is that the stones are cleaned regularly.
  • Before you decide on a particular product, you should know about the size, quantity and recommended areas of use of the lava stones.

Lava stone: Our Picks

Guide: Questions you should ask yourself before buying lava stones

Are there different types of lava stones?

Lava stones are always made of the same material, namely cooled volcanic rock. However, lava stones come in different sizes. Lava stones are not only used for barbecues, they are often used in the garden for decoration or as a substitute for topsoil. In addition, the stones are made into jewellery or used as decoration in aquariums. The size you should buy depends on your barbecue. The most common sizes for lava stone barbecues are: 32 - 56 cm or 40 - 120/150 cm. If you want to buy new lava stones, it is best to orientate yourself on the lava stones that were included in the delivery.


You can buy lava stones in different quantities. You should pay attention to whether you want to barbecue at home or while camping. The number of people also plays a role, of course. (Photo: FlorianJung /

How many lava stones do I need for barbecuing and how many are in a bag?

The amount of lava stones depends on the size of the barbecue. For smaller grills, about three kilograms, for larger grills up to six kilograms are needed. Counting the lava stones would be a bit tedious. As a rule, they are measured in kilograms. For the small camping barbecues, the three-kilogram packets are often enough. Since table barbecues and lava grills with trolleys have a larger grilling surface, an average of about four to six kilograms of lava stones are needed.

Lava stones are available in various quantities. You can find small boxes with only one kilogram up to 25 kilogram bags. When buying, also pay attention to the size of the individual stones.

How much do lava stones cost?

The price of lava stones depends, of course, on the quantity. However, the common logic of "the more I buy, the cheaper the price" does not apply here.
Quantity Price
3 kg 4,35-38 Euro
5 kg 5-12 Euro
10 kg 8,70-13,90 Euro

Especially with the three-kilogram sacks, there are immense price differences. The expensive stones are usually original stones from the lava stone grill manufacturer. According to recensors, however, they do not differ from the cheap "no-name" products.

Can I reuse lava stones and if so, how often and how do I clean them?

Yes, lava stones can be reused several times without any problems. However, there is no clear rule of thumb how often they can be reused. This depends mainly on three factors:

  • The condition of the food to be grilled, i.e. how greasy is the food and how much fat drips onto the stones?
  • Use of aluminium trays and aluminium foil
  • How often are the stones cleaned?

How often the lava stones need to be renewed depends on how often the lava stones are cleaned and how much fat has collected in the stones. A good criterion for recognising that new stones are necessary is the smell during grilling and the smoke development. If the barbecue smokes more than usual and starts to smell, the lava stones need to be replaced at the latest. However, the lava stones should be changed at least once per barbecue season.

Buying criteria: You can use these factors to compare and evaluate lava stones

In the following, we would like to show you which criteria you can use to compare and evaluate lava stones. This will make it easier for you to find the right lava stones for your lava stone barbecue among the different products. In summary, the following criteria apply:

  • Size of the lava stones
  • Quantity of lava stones
  • Areas of application of the lava stones

In the following paragraphs you can read about the individual factors and how you can classify them.


Lava stones come in a wide variety of sizes. It is important to know how fine-meshed your grill grid is so that the stones do not fall through it. All lava stone packs have a "from - to measurement" so the stones are actually always different sizes. Stones that are too small can quickly fall through the grid and stones that are too large often don't fit well in the grill tray. Most lava stones come in sizes between 32 mm and 70 mm. It makes sense to use the stones supplied as a guide when buying a new one.


The quantity of lava stones depends on the size of the grilling surface. Large table barbecues or lava grills with trolleys need more lava stones than small camping barbecues. The large grills are often designed for 5-6 people and have a correspondingly large grilling surface. To ensure that the heat is evenly distributed over the entire grilling surface, the lava stones must be laid out everywhere. It is important to leave a small space between the stones so that the air can circulate well. For a barbecue area of around 1600 cm², approximately five to six kilograms of lava stones are required. For camping lava grills, about 3 kg are sufficient.

Different areas of application

Lava stones can be used in a wide variety of areas. They are often found in gardens, in aquariums, as jewellery and, of course, in lava stone barbecues.

Did you know that lava stones are also popular for saunas? Because they are very porous, they bind the water and slowly release moisture.

On the respective packaging you will find the exact information on how to use the stones. The material of all lava stones is usually the same. They differ more in their surface texture and size. For example, lava stones that are too large do not fit into the lava stone grill and are more advantageous for aquariums or in the garden.

Facts worth knowing about lava stones

What is special about lava stones and what do they do?

Lava is a hot mass of rock that emerges from a volcano. After cooling, a so-called lava slag is formed from which the stones can then be extracted. A special feature of lava stones is the porous structure and the perforated surface which results in a very good heat storage. The stored heat can then be transferred to the corresponding food to be grilled.

How are lava stones produced?

As the name suggests, lava stones are made from lava slag. The slag is found in areas where there were active volcanoes a long time ago. In Germany, the largest mining area for this raw material is the Eifel. There, the stones are extracted in open-cast mines and processed as an untreated and natural raw material for a wide variety of uses.

Image source: / Arcturian