ComBase is a collaboration between the University of Tasmania and the USDA Agricultural Research Service (USDA-ARS).

The ComBase web interface can be easily accessed on any platform, including mobile devices, in a user friendly way.

ComBase is an online tool for quantitative food microbiology. Its main features are the ComBase database and ComBase models.

The focus of ComBase is describing and predicting how microorganisms survive and grow under a variety of primarily food-related conditions.

ComBase is a highly useful tool for food companies to understand safer ways of producing and storing foods. This includes developing new food products and reformulating foods, designing challenge test protocols, producing Food Safety plans, and helping public health organizations develop science-based food policies through quantitative risk assessment.

Over 60,000 records have been deposited into ComBase, describing how food environments, such as temperature, pH, and water activity, as well as other factors (e.g. preservatives and atmosphere) affect the growth of bacteria.

Each data record shows users how bacteria populations change for a particular combination of environmental factors. Mathematical models (the ComBase broth and food models) were developed on systematically generated data to predict how various organisms grow or survive under various conditions.

New updates

Click here to see the new updates to data and features

New online models

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Click here to access the ComBase tutorials
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Access ComBase

The ComBase Browser enables you to search thousands of microbial growth and survival curves that have been collated in research establishments and from publications

The ComBase Predictive Models are a collection of software tools based on ComBase data to predict the growth or inactivation of microorganisms




Please donate

Since its inception in 2003, ComBase has been a free public resource. We want to ensure that it remains the world’s largest database that helps the food community keep our food safe and wholesome.

Behind the scenes, your ComBase team identifies new published data, communicates with data authors, and then formats the information so that it is quickly integrated into ComBase. In addition, we provide support to anyone who needs extra assistance to use ComBase tools.

Please take a minute to donate what you can, by clicking one of the payment options in this link. From there, you’ll be directed to a secure payment portal.

Your support will keep ComBase a valuable resource for years to come.

Thank you for your generous contribution!