I was so impressed with today’s guest blogger’s recent webinar (arranged by IChemE’s Food and Drink SIG) I got in touch with him to ask about his work and why he became a chemical engineer. Thomas Brewer works in the food industry for SABMiller as an engineering consultant.
He has had an interesting career path, so I’ll let him explain it in more detail:
I am perhaps unusual amongst our profession as I knew from a very early age that I wanted to be a chemical engineer. At about the age of 11, I was becoming more aware of the world around me and noted the science articles about Brazil, the oil crisis and biofuels in newspapers. I decided chemical engineering would help me be a part of the solution and give me an opportunity to make an impact.
If asked what today’s big challenges are, I would say we already recognise the issues around water and energy and we are going to have to deal with protein. Every day our society downgrades or throws away protein, we need to get better at valuing it for what it is.
If you’re a fan of the Olympics, and swimming in particular, you’ll be familiar with the size of the pool (50 m x 25 m). But have you ever wondered how much water it holds and how long it might take for one person to drink it?
Depending on depth, the pool will hold between 1.25 million litres of water (1 m depth) to 2.5 million litres of water (2 m depth). And if you assume we all drink between 2-4 litres of water each day, that would take over 3,400 years for one person to consume.
In fact, many of us will consume all the water in the smaller size swimming pool in just one year. It’s all due to the amount of ‘hidden water’ we consume in our food.
These numbers may be hard to believe but here’s a few examples of how easy it is to build up your water footprint based on three main meals a day – even without dessert!