With Australians stocking-up on pantry essentials, including rice, a timely Deakin study pinpoints the secret to cooking the
‘perfect’ pot – and it’s all in the water-to-rice ratio.
The research also reveals that texture is key to rice-eating satisfaction, with scientists from Deakin’s Centre for Advanced
Sensory Science (CASS) finding that 83 per cent of consumers determined which water-to-rice ratio they preferred based on the
the cooked rice’s texture.
CASS director Professor Russell Keast said the preferences weren’t uniform, with most consumers falling into two camps – those
who liked fluffy rice, and those who preferred a more sticky consistency.
“Currently rice manufacturers recommend one cup of rice to 375 mL of water for cooked rice – this method is an appropriate recommendation for consumers with no strong preference for rice texture, but we now know this is less than one-fifth of rice
consumers,” Professor Keast said.
“Four in five consumers are most concerned with texture – so they need to follow a different rice-to-water ratio.
Our data shows consumers who prefer a fluffier texture should use 280 mL of water per cup of rice, while those wanting a stickier texture should use 470 mL of water per cup of rice.”
As part of the study, an expert panel trained in describing rice flavour was employed to identify and rate key cooked rice
attributes such as texture, aroma and appearance.
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These elements were then linked to feedback from a consumer test-group who tasted the samples and ranked them in order of
preference, with the findings from both groups correlated to determine the most important elements for “perfect” rice.
CASS PhD candidate Clinton Maleki said the test-group’s preference for texture was surprising, as previous research had
identified aroma as the strongest reason for preference.
“These findings demonstrate the importance of texture in influencing consumer preferences for not just rice, but all kinds of
food,” he said.
“Texture is an important avenue of investigation to encourage the consumption of foods that are part of a healthy diet.
The Australian Guide to Health Eating recommends rice, in particular brown rice, for its high amounts of fibre and nutrients.
“Australia is a world-leader in producing premium quality rice, contributing to rice’s status as the ninth largest food commodity
in the world, and a global production of more than 500 million tonnes in 2019. As we have seen, rice has also been one of the
first staples that sold out as people started stock-piling food in response to COVID-19.”
CASS researchers will now investigate the potential reasons for different rice texture preferences, with current studies into
mouth behaviours and tactile perception potentially holding the key.
The full results of the study, “Cooking the Perfect Australian Aromatic Rice”, have now been accepted for publication in the
Journal of Food Science. Ricegrowers Australia provided the rice used in this study.
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