How it Works
.png)
HotRot guarantees that the plant designed, installed and operated according to our guidelines will not result in odour problems for your business.
Annual operating costs for a HotRot plant are 25% less than for a comparable tunnel composting facility.
LOW OPERATING COSTS
HotRot systems require 50-75% less space than similar sized in-vessel and tunnel composting systems.
COMPACT & SCALEABLE
HotRot systems require significantly less labour than similar sized in-vessel and tunnel composting systems.
ROBUST & DURABLE
A unique central tine-bearing shaft rotates periodically to redistribute heat, moisture, and maintain porosity for efficient composting.
UNIQUE DESIGN FEATURES
Want to learn more about HotRot technology?
The HotRot 3518 is the largest of Global Composting Solution’s in-vessel composting units. Designed for larger municipalities and sewage treatment plants.
Suitable for on-site applications such as zoos and mining camps, smaller municipal transfer stations, resorts and commercial food waste facilities.
The baby of the HotRot range, the HotRot1206, is designed to process food waste from canteens and commercial premises.
.jpeg)
ABOUT OUR COMPANY
HotRot is the foundation of a highly efficient and cost effective system for your composting needs
Global Composting Solutions Ltd (HotRot) is a New Zealand-based business providing waste treatment solutions for customers with a variety of organic waste streams. HotRot designs, builds, installs and commissions integrated Organic Waste Treatment Plants around the proprietary HotRot Technology.
40+
Reference Sites
282
Waste Managed
15+
Countries
OUR INSTALLATION SITES
HotRot in Action: Trusted Worldwide
HotRot Organic Waste Processing Plants are installed across all major regions, delivering sustainable waste solutions in diverse environments. From zoos and universities to mining camps, remote work sites, resorts, and regional waste authorities, our technology is making a real impact. Explore our installation sites to see how HotRot is being used.
HOTROT APPLICATIONS
Proven Solutions for Diverse Waste Challenges
HotRot systems are used worldwide in a variety of industries and environments, with these applications and many more.
HotRot systems minimise costs and environmental impact at mine sites, oil and gas projects, and remote camps worldwide. Commonly used models include the HotRot 1811 and 1206, often supported by dewatering systems.
Designed for high-efficiency composting, HotRot systems process food waste alone or with garden organics, producing quality compost for populations from a few hundred to 130,000 people.
Turning dewatered biosolids into a useable fertiliser. Sludge or biosolids composting is usually done off-site at a dedicated composting facility, which generally involves significant transport, carbon emissions and costs. HotRot's compact footprint offers an on-site solution and can be coupled with dewatering systems, etc. Solutions for WWTP up to 300,000 population equivalents primarily utilising the HotRot 3518 and HotRot 1811.
Discover the full range of HotRot applications and download detailed PDFs.
IN-DEPTH INSIGHTS
White Papers about the Fundamentals of HotRot Technology
Composting should be viewed as a resource recovery process rather than a waste treatment system. When planning an organic resource recovery facility, key considerations include location, marketing, and emission control. The benefits extend beyond economic gains, offering opportunities to reduce greenhouse gas (GHG) emissions.
Efficient composting relies on managing the quality of waste, its structure or porosity, and its moisture content. The document on amendments and bulkers explains what these materials are and how they help control moisture and porosity. Another document explores the dewatering of food waste to minimise the need for these materials. Composting is just one part of the process—you must also consider storage, application, and effective use.
HotRot is a unique and advanced composting system. Three documents compare different organic waste processing options, highlighting the key technical advantages of the HotRot system. These include its approach to aeration, temperature regulation, moisture management, and particle size control, all of which contribute to maximising composting efficiency.
TESTIMONIALS
Client Success Stories: Hear What Our Clients Say
"We have made an important step towards our sustainability goals of zero waste to landfill"
THOMAS MEEK
Compost, Recycling & Waste Manager
Melbourne Zoo
The system has proven incredibly easy to operate and has certainly become a talking point with our consumers as well as something to be proud of among employees.
MANDY MCKAY
Sustainability Coordinator
Sierra Nevada Brewing Co.
Overall, the HotRot has been a wise investment for Sierra Nevada and we would absolutely recommend the system to others looking for onsite composting solutions.
CHERI CHASTAIN
Sustainability Manager
Sierra Nevada Brewing Co.