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WonderState Heartstrings

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Decent Pro / Niche Duo

2024-9-10

9-6bar, 92C

• 11.5/20.5 -> 9/15s 32.0g
• 9/20.0g -> 9/20s 33.0g, fine
• 8/20.0g -> 8/24s 30.9g, slightly bitter
• 8.5/20.0g -> 8/23s 30.8g, weaker flavor
• 8.0/21.0g -> 8/29s 28.3g, sweet, weaker flavor at the beginning but turns good later
  • try 20.5g ground

9bar, 94C

• 8.0/20.0g -> 8/24s 29.4g, sweet but slightly bitter

9/20.0g

• 9bar/94C -> 7s/16s 28.7g, obvious acidity, a little sweet
• 9bar/94C -> 8/20s 34.5g
• 9bar/88C -> 8/18 31.5g, less obvious acidity, no sweetness
• 6bar/88C -> 8/19s 30.9g, less obvious acidity, a little sweet
• 6bar/94C -> 8/18s 30.0g, more acidity, a little sweet
• 9bar/94C -> 8/19s 30.4g, a little sweet

acidity and flow rate is not significantly changed, it could because the ground is too coarse, try 8 grind and run through the experiment again.

8/20.0g on 18g basket

• 9bar/94C -> 6/21s 31.1g, obvious flavor, little bitter, little sweet aftertaste
• 9bar/88C -> 6/22s 30.5g, more acidity
• 6bar/88C -> 7/23s 30.1g, bitter, no sweet at all
• 6bar/94C -> 7/22s 29.5g, bitter, weaker flavor, sweet aftertaste
  • on 20g basket -> 8/23s 30.2g, nothing changed

6/20.0g

• 9bar/94C -> 8/38s 30.5g, flavor not obvious, strong mouthfeel, sweet
• 6bar/94C -> 7/36s 30.5g, bitter, weaker flavor, some sweet aftertaste

7/20.0g

• 6bar/94C -> 8/29s 29.8g, quite balance
• 9bar/94C -> 8/31s 30.0g, milk frothing too hot, but could feel more acidity
• 8bar/94C -> 7/31s 30.5g, quite not noticible bitter

7.5/20g

• 9bar/94C -> 8/27s 30.5g, yes!
  • try 9~6bar
  • 8/21s 30.5g, slightly but enjoyable bitter
    • could be not pre-heating the basket (need verify)
  • 7/24s 30.8g, repros
  • 7/22s 30.8g
• 9~9bar/94C
  • 8/23s 30.6g, slightly bitter, could be normal mistake
• 9~6bar/94C
  • 9/28s 29.9g, slightly bitter but strong flavor and clarity, stable sweet aftertaste

8.5/20g

• 9~6bar/94C
  • 10/20s 30.6g, less bitter, more acidity and clarify, more bitter and same sweet in aftertaste