Filter prep:
Place the metal filter into the AeroPress filter cap first, followed by the two paper filters. Thoroughly rinse the filters with hot brewing water to remove any papery taste. Use the AeroPress stirrer to flatten the paper filters, then firmly shake out the excess water.

Step-by-Step Instructions

1. Set up the AeroPress in the inverted position and add 19.9 g of ground coffee.
2. Pour in 90 g of hot water at 90°C (194°F).
3. Stir back and forth 10 times.
4. At 0:50, add 50 g of cold water.
5. Gently stir the surface in 5 circular motions.
6. Attach the prepared filter cap and carefully release the trapped air.
7. At 1:20, begin pressing.
8. At 1:55, finish pressing. The resulting coffee concentrate should weigh approximately 97.5 g.
9. Add hot water (bypass) until the total beverage weight reaches 155 g.
10. Add cold water until the final beverage weight reaches 190 g.

Final beverage weight: 190 g
Final TDS: 1.3%