under extraction

  1. How to Prevent Under or Over Extraction?

    How to Prevent Under or Over Extraction?

    Coffee extraction is the final, and one of the most important factors in determining whether your coffee tastes good, or not.

    While the extraction process may seem like a simple and straightforward step, controlling the variables can result in a big improvement for your coffee.

    If you want to brew the most flavourful and balanced tasting cup of coffee, here’s how to prevent under and over extraction.

    What is Coffee Extraction?

    Extraction occurs when water pulls out the flavours and aroma from coffee grounds. These flavours are made from a combination of the oils, sugar, and dissolved compounds that are present in coffee grounds.

    The secret to perfecting coffee extraction lies in extracting the ideal amount of these flavours and aroma. Too much results in an over extracted and bitter brew. Too little and you will get an under extracted brew that tastes sour.

    A lot of work goes into balancing the countless variables to extract a cup of deliciousness, but it’s well worth it. Here’s what a perfect cup of coffee tastes like.

    Factors that Prevent Under or Over Extraction

    Grind Size

    Menu display on a coffee bean grinder
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  2. Grinding Your Own Coffee: Size DOES Matter

    Grinding Your Own Coffee: Size DOES Matter

    You can have the highest quality coffee, the perfect roast and a great coffee machine, but still make bad coffee. Why? It’s all about the coffee grind size. But fear not – you can still make barista-quality coffee at home. The secret is simple: it starts with good quality beans that have been consistently ground to the correct size.

    The Goal

    The whole reason we use different grind sizes is to avoid over or under extracting coffee. Too coarse a grind and you may end up with under-extracted coffee that is sour, acidic and salty. Too fine and your coffee could be over-extracted, resulting in a bitter, hollow and tasteless drink. (Not sure what these descriptions mean? Read our coffee taste wheel!) An infographic showing the difference between a coarse and fine coffee grind. It’s simple science. Coffee is essentially a reaction when water touches coffee grounds. A finer grind can reduce the flow rate of the water, increasing the contact time, and vice versa. If the contact time is too high, it will result in an over-extracted brew, which can be bitter. Struggling with a bitter cup of coffee? Here's why and how to fix it. Aside from the size of the grind, consistency also matters. If some grinds are l
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