CAN Academy - Barista Education

Beginner's Guide to Understanding Total Dissolved Solids (TDS)

CAN Academy
Nov 27, 2024By CAN Academy

What Are Total Dissolved Solids?

When you brew coffee, the quality of water matters. One key factor is Total Dissolved Solids (TDS). TDS refers to all the minerals, salts, and organic matter dissolved in water. It is measured in parts per million (ppm).

Understanding TDS helps baristas control the taste and consistency of coffee. Water with too high or too low TDS can affect the extraction process. This can lead to a bitter or weak brew.

TDS

Why TDS Matters in Coffee Brewing

Baristas need to pay attention to TDS levels. High TDS can make coffee taste salty or metallic. Low TDS might result in a flat and dull flavor. Finding the right balance is key to a perfect cup.

Generally, a TDS level between 150-250 ppm is ideal for coffee brewing. This range ensures the water extracts the right amount of flavors from the coffee grounds.

How to Measure TDS

Measuring TDS is simple. You can use a TDS meter, a small device that gives a digital reading. Follow these steps to measure TDS:

  1. Turn on the TDS meter.
  2. Dip the meter into a water sample.
  3. Read the TDS level displayed on the screen.

Regular checks help maintain consistency in your coffee brewing process.

Adjusting TDS Levels

If your TDS levels are off, you can adjust them. For high TDS, consider using a water filter. It reduces the number of dissolved solids. For low TDS, adding minerals can help. Some products are designed to enhance water for coffee.

Experimenting with TDS levels can help you find the perfect balance for your coffee style. Remember, small changes can make a big difference in taste.

Common Mistakes to Avoid

Some baristas overlook TDS, focusing only on coffee beans. This can lead to inconsistent results. Others may rely too heavily on water filters, stripping water of essential minerals.

  • Ensure you regularly check TDS levels.
  • Do not over-filter your water.
  • Find a balance that works for your specific coffee beans.

Conclusion

Total Dissolved Solids play a crucial role in coffee brewing. By understanding and managing TDS, baristas can ensure a consistent and flavorful cup of coffee. Regular monitoring and adjustments can lead to better coffee experiences for you and your customers.