Introduction
We understand that reflecting on the farewell of a loved one — or one's own — is a moment that requires serenity and respect. If you or your family value sustainability, it is natural to want that final gesture to reflect that commitment to the environment as well. An eco-friendly funeral is a dignified and coherent way of saying goodbye, and an increasing number of Spanish families are considering it.
In this complete guide we analyse all the eco-friendly funeral options currently available in Spain: from biodegradable coffins and bios urns to eco-cremation, as well as natural cemeteries and emerging alternatives that are not yet regulated in our country. We also explain the current legal situation, approximate costs and how the digital memorial has become the most coherent complement to ecological values.
This article is intended for those who wish to plan a farewell that is respectful of the planet, whether out of personal conviction or to honour the environmental wishes of a loved one who has passed away. This is not about judging traditional options, but about informing about alternatives that enjoy growing social acceptance and greater availability in Spain.
Whether you are looking for general information or need concrete data on prices and legality, you will find clear and up-to-date answers throughout the following sections. For broader guidance on organising a funeral, you may consult our complete guide on how to organise a funeral in Spain.
Why an Eco-Friendly Funeral
An eco-friendly funeral is one that seeks to minimise the environmental impact of funeral processes, reducing emissions, avoiding pollutant substances and using biodegradable materials. The motivation is not solely environmental: many families find in this option an authentic way of honouring the values of the person who has died.
Conventional funerals have a significant environmental impact. A standard cremation consumes between 20 and 30 litres of gas and releases between 200 and 400 kg of CO2 into the atmosphere (an average of around 240 kg), in addition to pollutant particles such as mercury from dental fillings. Traditional burial, for its part, introduces into the soil embalming chemicals (such as formaldehyde) and non-biodegradable materials: varnishes, metals, synthetic fabrics and concrete from burial vaults.
In Spain, environmental awareness has grown notably over the last decade. The cremation rate now exceeds 50% of deaths — a shift we analyse in depth in our comparison between cremation and burial — which has driven the search for options that reduce that carbon footprint even further. However, it is important to emphasise that choosing an eco-friendly funeral does not mean sacrificing dignity or ceremony. A wake, a farewell service — religious or civil — and a fully dignified tribute can be held with any of the sustainable options described below.
Eco-Friendly Funeral Options Available in Spain
Spain has several ecological alternatives already available in the funeral market. Below, we detail the main ones, with their approximate prices and legal considerations.
Biodegradable Coffins
Biodegradable coffins are made from materials that decompose naturally without releasing toxic substances into the soil. The most common options in Spain are:
| Material | Approximate price | Characteristics | Availability in Spain |
|---|---|---|---|
| Recycled cardboard | From 300 EUR | Lightweight, customisable, fully biodegradable | Growing, several funeral homes |
| Untreated wood | 400 - 1,000 EUR | No varnishes or chemical treatments | Widespread |
| Artisan wicker | 800 - 1,500 EUR | Aesthetically natural, local craftsmanship | Limited, made to order |
| Bamboo | 600 - 1,200 EUR | Fast-growing, renewable | Imported, made to order |
These coffins are legal for both burial and cremation in Spain. Their price is comparable — and even lower — than that of a mid-range conventional coffin, which costs between 600 and 3,000 EUR according to the data we compile in our guide to funeral costs in Spain 2026.
Biodegradable Urns and Bios Urns
Biodegradable urns offer an ecological alternative after cremation. The best-known model is the bios urn, which contains a tree seed. When the urn is buried with the ashes, the container decomposes and the nutrients feed the growth of the tree, creating a living memorial.
- Price: between 50 and 200 EUR, depending on the model and tree species included.
- Common species: olive, holm oak, oak, Mediterranean pine.
- Legality: fully legal in Spain. Ashes may be buried on private land or in designated areas, always respecting municipal regulations.
This option is particularly meaningful for those who wish the farewell to generate life rather than waste.
Natural Burial
Natural burial is the method with the lowest environmental impact according to life cycle analyses. It involves placing the body directly in the earth without chemical embalming and with a biodegradable coffin or, in its purest form, wrapped solely in a shroud of natural fibres.
However, Spanish regulations present an important limitation: most autonomous communities require the use of a coffin for interment. This means that burial exclusively with a shroud, without any coffin, is not viable in most of Spanish territory. Nevertheless, it is possible to combine a biodegradable coffin (of cardboard or untreated wood) with the absence of embalming, which constitutes an ecologically advanced alternative within the current legal framework.
Eco-Cremation
Eco-cremation is a version of conventional cremation that seeks to reduce its carbon footprint. The main differences are:
- Use of lightweight, biodegradable coffins, which reduce the time and energy required for incineration.
- Crematoriums with advanced filtration technology, which minimise pollutant emissions.
- Carbon offset programmes: some crematoriums in Spain already offer the option of offsetting emissions through reforestation projects.
Although eco-cremation does not completely eliminate emissions, it reduces them significantly compared to standard cremation. For a detailed comparison between cremation and burial, you may consult our article on cremation vs burial in Spain.
Emerging Options Not Yet Available in Spain
The international funeral sector is developing new sustainable technologies which, whilst not yet legal in Spain, are worth knowing about for their medium-term potential.
Alkaline Hydrolysis (Resomation or Aquamation)
Alkaline hydrolysis uses water, heat and an alkaline solution to decompose the body in a process that reduces emissions by approximately 20% compared to conventional cremation. The result is mineralised bone remains (similar to cremation ashes) and a sterile liquid effluent.
- Legality: authorised in some US states, the Netherlands and the United Kingdom. Not regulated or authorised in Spain at present.
- Advantages: lower energy consumption, no direct CO2 or mercury emissions.
Human Composting (Recomposition)
Human composting transforms the body into fertile soil in an accelerated process lasting 30 to 45 days. It is legal only in several US states (Washington, Colorado, Oregon, among others).
- Legality in Spain: not contemplated in current regulations.
- Concept: the body is placed in a vessel with organic material (wood chips, alfalfa) and microorganisms that accelerate natural decomposition.
Mushroom Coffin (Loop Living Cocoon)
Designed in the Netherlands, this coffin is made from mycelium (the network of fungal filaments) and organic materials. The mycelium accelerates the body's natural decomposition and helps neutralise pollutant substances in the soil.
- Legality in Spain: there is no specific regulation prohibiting it for conventional burial, but its commercial availability in Spain is practically nil.
- Decomposition period: between 2 and 3 years, compared to 10-20 years for a conventional coffin.
Tradition and technology. Modern families complement traditions with digital memorials: a space with no environmental impact where photographs, videos and life stories can be gathered, accessible from any device and anywhere in the world. Discover the digital memorial on Kinmory
Green and Natural Cemeteries in Spain
A green or natural cemetery is a burial ground where conventional gravestones, concrete vaults and chemical treatments are dispensed with. Instead, graves are marked with native vegetation, natural stones or small wooden plaques. The aim is for the land to maintain or recover its condition as a natural space.
| Aspect | Traditional cemetery | Natural cemetery |
|---|---|---|
| Marking | Stone gravestone, niche | Tree, shrub, natural stone |
| Construction materials | Concrete, marble, granite | None or minimal natural ones |
| Coffin | Conventional (treated wood, metal) | Biodegradable mandatory |
| Embalming | Common | Prohibited |
| Maintenance | Conventional gardening | Natural ecosystem management |
| Environmental impact | High | Minimal |
| Plot cost | 500 - 3,000 EUR | Variable (no stable data in Spain) |
In Spain, the situation of natural cemeteries is very much in its infancy. Some pilot projects and municipal proposals exist, but there is no established network comparable to that of other European countries. By way of reference, the United Kingdom has more than 300 natural cemeteries registered by the Natural Death Centre.
For interested families, an intermediate option is to use a biodegradable coffin and a bios urn in a conventional cemetery, or to scatter the ashes in nature — a practice that is legal in Spain provided local regulations and restrictions on protected natural areas are observed. In cemeteries without a conventional gravestone, a QR code on a discreet plaque can serve as an access point to a digital memorial.
The Digital Memorial as an Ecological Complement
The digital memorial is probably the most coherent option with ecological values when it comes to preserving the memory of a loved one. Unlike a stone gravestone or funeral monument, a digital memorial does not require the extraction or transport of materials, does not occupy physical land and generates no waste.
A digital memorial on Kinmory allows you to:
- Bring together photographs, videos and life story in a permanent space accessible from any device.
- Reduce the need for travel: family and friends can visit the memorial from anywhere in the world, without needing to travel physically to the cemetery.
- Complement any eco-friendly option: whether you choose natural burial, cremation, a bios urn or ash scattering, the digital memorial functions as the point of reference for remembrance.
For those who opt for a natural cemetery without a conventional gravestone, the digital memorial becomes the only permanent space where memory can be preserved. It is permanent and fully compatible with a sustainable farewell. You can find more information in our article on what a digital memorial is and how to create one.
Frequently Asked Questions
Is an eco-friendly funeral legal in Spain?
Yes, with important nuances. Biodegradable coffins (cardboard, wicker, untreated wood) and bios urns are fully legal for both burial and cremation. However, Spanish regulations require a coffin for interment in most autonomous communities, which prevents burial wrapped only in a shroud. Alkaline hydrolysis and human composting are not regulated or authorised in Spain at present.
How much does an eco-friendly funeral cost in Spain?
An eco-friendly funeral with a cardboard biodegradable coffin and cremation can cost between 2,000 and 3,500 EUR, a price similar to or lower than a conventional funeral. The cardboard coffin starts from 300 EUR, compared to 600 to 3,000 EUR for a conventional one. Bios urns cost between 50 and 200 EUR. A digital memorial on Kinmory complements the sustainable farewell with a permanent space of remembrance.
Can you scatter ashes in nature in Spain?
Yes, Spanish law permits the scattering of ashes in nature (sea, mountains, woodland) provided local regulations are observed. Some municipalities and protected natural areas have specific restrictions that should be checked beforehand. State authorisation is not required, but municipal ordinances of the chosen location must be respected.
What is a bios urn and how does it work?
A bios urn is a biodegradable urn containing a tree seed (olive, holm oak, oak or other species). When buried with the ashes of the deceased, the urn decomposes naturally and the ashes nourish the growth of the tree, creating a living memorial. Its price ranges from 50 to 200 EUR and it can be buried on private land or in designated areas.
Which pollutes more, cremation or burial?
Standard cremation produces direct CO2 emissions (between 200 and 400 kg per incineration) and releases pollutant particles. Conventional burial contaminates the soil through embalming chemicals and non-biodegradable materials from the coffin and vault. According to available life cycle analyses, natural burial (without embalming, with a biodegradable coffin) is the method with the lowest overall environmental impact.
Summary
- An eco-friendly funeral minimises the environmental impact of the farewell by using biodegradable materials and avoiding pollutant substances. It is a dignified and increasingly accessible option in Spain.
- Biodegradable coffins (cardboard, wicker, untreated wood, bamboo) are legal and available in Spain, with prices from 300 EUR.
- Bios urns allow the ashes to be transformed into a tree, creating a living memorial for a cost of 50 to 200 EUR.
- Natural burial with only a shroud is not viable in most Spanish autonomous communities due to the coffin requirement, but it is possible with a biodegradable coffin and without embalming.
- Eco-cremation reduces emissions through lightweight coffins and filtration technology, and some crematoriums offer carbon offset programmes.
- Options such as alkaline hydrolysis and human composting are not regulated in Spain, although they are advancing in other countries.
- Natural cemeteries are still very much in their infancy in Spain, unlike countries such as the United Kingdom, which has more than 300.
- The digital memorial is the most sustainable complement: no stone, no printing, accessible from anywhere in the world.
Related Articles
- Cremation vs Burial in Spain: Price, Process and Which to Choose — Detailed comparison of the environmental impact of both options.
- How to Organise a Funeral in Spain: Complete Guide — Step-by-step guide to organising a funeral, including eco-friendly options.
- How Much Does a Funeral Cost in Spain in 2026? — Price breakdown to compare the cost of an eco-friendly funeral versus a conventional one.
- What Is a Digital Memorial and How to Create One on Kinmory — Everything about the digital memorial as a sustainable alternative to the gravestone.
- QR Code on Gravestones: How to Connect the Physical with the Digital — Ideal option for natural cemeteries without a conventional gravestone.
Modern Families Complement Traditions with Digital Memorials
Without the need for a physical gravestone, a digital memorial on Kinmory allows you to preserve photographs, videos and life story with the minimum environmental impact. Permanent and accessible from any device.
Create a digital memorial on Kinmory