Things I Wish I Knew Before Studying Chemical Engineering

When I first heard the term "chemical engineering," I imagined spending most of my time in a laboratory, mixing chemicals and conducting experiments. While that is certainly part of the field, I quickly discovered that chemical engineering involves much more than just chemistry. As a third-year student about to finish this program, there are definitely many unexpected lessons I have learnt along the way

Here are a few lessons I would share with anyone considering studying chemical engineering.

1. Chemical Engineering Is Not Just About Chemistry

One of the biggest misconceptions about chemical engineering is that it is simply chemistry with a bit of engineering added to it.

In reality, chemical engineering brings together many different disciplines. Alongside chemistry, you will encounter mathematics, physics, programming, and plenty of problem-solving. Instead of only learning how chemical reactions work, you also learn how scientific principles can be applied to develop materials, improve processes, and solve real-world challenges.

What makes the field interesting is how everything connects. Something that initially seems like a purely theoretical concept can eventually become useful in understanding an industrial process or developing a more sustainable technology.

So, if you are interested in chemical engineering but do not necessarily see yourself spending your entire career in a laboratory, don't worry. There are many different directions you can explore.

2. You Don't Have to Understand Everything on the First Try

Engineering courses can sometimes feel overwhelming. You might sit through a lecture, follow the first few slides, and then suddenly find yourself wondering how everyone else seems to understand what is happening.

One thing I wish I had realised earlier is that not understanding something immediately does not mean you are bad at the subject.

Some concepts simply take time. You might need to revisit a lecture, watch another explanation, discuss the topic with a friend, or solve several exercises before things finally start making sense.

Over time, I have come to appreciate that learning is not always a straightforward process. Sometimes you understand a topic quickly, and sometimes you need to approach it from several different angles.

My advice is to be patient with yourself and, more importantly, don't be afraid to ask questions.

3. Good Study Habits Matter More Than Last-Minute Motivation

I know that many students, including me, have the temptation to procrastinate and leave things until the last minutes. Unfortunately, this is not a very wise approach in the engineering field

Many subjects build on concepts introduced earlier in the course. If you miss an important foundation, understanding the following topics can become much harder.

One lesson worth learning early is that consistency matters. Spending a little time reviewing material each week can be much more effective than trying to understand everything in a few days.

That does not mean you need to study all the time or follow a perfect schedule. In fact, finding a routine that works for you is part of the university experience.

It is also important to take breaks, get enough rest, and remember that productivity is not measured by how many hours you spend sitting in front of your laptop.

4. University Is About More Than Just Grades

Of course, academic performance matters. We all want to do well in our courses, pass our exams, and eventually graduate.

However, I think it is easy to become so focused on grades and deadlines that we forget about everything else university has to offer. At Aalto, learning happens both inside and outside the classroom.

Alongside my studies, I have had the opportunity to work as a Teaching Assistant and as a trainee with Aalto Squad. These experiences have allowed me to meet new people, develop my communication skills, and see different sides of the university community.

They have also reminded me that some of the most valuable things you learn at university do not necessarily appear on your transcript. Whether it is joining a student organisation, participating in an event, working on a project, or trying something completely outside your comfort zone, I would encourage students to explore the opportunities around them.

You never know which experience might lead you to discover a new interest or future career direction.

5. You Don't Need to Have Your Future Figured Out Yet

When starting university, it can sometimes feel as though everyone already knows exactly what they want to do. Some students seem to have their entire career planned out, while others already know which field they want to specialise in.

But the truth is that university is also a place to explore. Chemical engineering covers a wide range of topics, from materials and energy to biotechnology, industrial processes, and sustainability. As you progress through your studies, you may discover interests that you had never considered before.

You do not need to know exactly where you will end up when you begin your degree. Sometimes, the most interesting opportunities are the ones you discover along the way.