with BIOCHAR you can save water save fertiliser grow better plants boost your soil

Upcoming Events

Join us at Agfest 2023

We are again exhibiting! Find us at
Site #M111 Mainstreet (near the Eastern Entrance).

We will have the information from the companies listed on our website and also the latest models of our 3 KON-TIKI-TAS Kilns on display.
4-6 May


Join us in the Tamar Valley, Tasmania
- Longford on the 9th May
- George Town-Bell Bay 11th May

Including Home & Community Gardening scale to Regenative Farming, Biochar production - co-composting, linking education and training with collaborative practices. Australia's first 'Living Lab' & Lighthouse Project, from potentially dangerous, flammable waste and weedy vegetation, to lasting values and stable carbon sink projects at every scale at the local to regional level.
9-11 May

Would you be interested in making use of your “unloved biomass” such as annual pruning material from your trees, roses, blackberries etc.? The woody material that would otherwise be unused and wasted can be turned into a valuable resource called BIOCHAR.

With our unique designed KON-TIKI-TAS Deep Cone Kilns – manufactured in the Tamar Valley from 5mm steel, you can make your own BIOCHAR.

Available in 3 Sizes – COMPACT – STANDARD – STRETCH

Our kilns can be shipped AUSTRALIA WIDE.

The kiln’s flame curtain process allows minimising polluting air emissions and creates a fine-grained, highly porous charcoal that helps soils retain nutrients and water.

Buy our Products

Our Pickup Points

  • Launceston – Harvest Market every Saturday
  • Hobart – Farmgate Market (prior arrangement only)
  • Northern Garden Centres
  • or ask us for various other pickup points.

Free delivery offered in the West Tamar Area!

NOTE: Before ordering please contact us to ask if stock is available.

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Contact Us!

Please Note

  • We ship our Kilns Australia-wide. Sorry, no international delivery.
  • We do not offer construction plans for sale at this time.
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Alternatively, you can contact us using the details below:

phone: 03 6394 4395
mobile: 0417 312 927
email: [email protected]

About Us

Our Tamar Valley based business Terra-Preta Developments is exploring the potential uses of Biochar and is producing FRANK’S CHAR branded products not only for use on our own land, but have made it available through leading Garden Centres and local Markets


Karin & Frank Strie
82 Brady’s Lookout Road
Rosevears, TAS, 7277
p: 03 6394 4395
m: 0417 312 927
e: [email protected]