No temperature-control kettle. Am I disqualified from green tea?

[Cleaver]

Question or objective: repeatable low-tech cooling method
Tea category: beginner green tea
Exact product: Everyday Spring sencha 2026
Vendor: North Window Tea
Origin: Shizuoka, Japan
Cultivar, if known: Yabukita
Harvest season/year: spring 2026
Processing or roast: sencha
Cake/batch number, if relevant: cake/lot noted above where applicable; otherwise N/A
Purchase/opening date: purchased 2026-06-10; opened 2026-08-24
Storage since purchase: refrigerated sealed pouch; portion warmed before opening
Style: Japanese
Vessel: ceramic kyusu
Vessel material: glazed ceramic
Nominal and actual filled capacity: 180 ml nominal / 150 ml filled
Filter or strainer: ceramic
Kettle: standard electric kettle + thermometer
Vessel preheated: yes
Dry leaf weight: 5 g
Water volume: 150 ml
Water temperature: boil then cool by transfer
Water source or mineral profile: filtered tap water
Rinse: 5-10 s where noted by the recipe; otherwise none
Infusion schedule: 60 s
Agitation: none
Was each infusion completely decanted?: yes
Aroma: grass and nori
Sweetness: medium
Bitterness: sometimes high
Astringency: medium
Body/texture: medium
Flavour: grass, nori
Aftertaste: clean
Number of satisfying infusions: 3
Exact problem: brewing without temperature-controlled kettle
Desired result: repeatable low-tech cooling method
Variable changed: cooling transfer
Previous value: guessing after boil
New value: two preheated-cup transfers
Result: tea became more consistent and less bitter
Dry-leaf photograph: not attached yet
Liquor photograph: available in the author’s notes; not embedded in this archive
Wet-leaf photograph: not attached yet
Video if pouring or drainage is relevant: not relevant

I am trying to solve a constraint rather than assemble the officially correct tea altar. The current experiment is cooling transfer: guessing after boil to two preheated-cup transfers. tea became more consistent and less bitter.

The goal is repeatable low-tech cooling method. First-hand reports from similarly constrained setups are more useful to me than a list of everything I could buy if the constraint disappeared.

[Baghar]

Long-term report
Direct recommendation: repeat the session with two preheated-cup transfers.
Applies to: Everyday Spring sencha 2026 / beginner green tea in a setup close to ceramic kyusu.
Evidence: repeated sessions over time.
Change: repeat the session with two preheated-cup transfers.
Expected effect: the cup should move toward repeatable low-tech cooling method if that variable is causal.
Observed result: tea became more consistent and less bitter.
Limitations: If your actual filled volume differs from the stated volume, the ratio may be the bigger issue.
Commercial relationship: none.

[Tofu-Tails]

Controlled test
Direct recommendation: repeat the same recipe on a second day.
Applies to: Everyday Spring sencha 2026 / beginner green tea in a setup close to ceramic kyusu.
Evidence: side-by-side or repeated one-variable test.
Change: repeat the same recipe on a second day.
Expected effect: a repeated result should be easier to trust.
Observed result: not tested on this exact setup yet.
Limitations: This may not transfer to a heavier roast or a very different vessel size.
Commercial relationship: none.

[Cleaver]

Comparable tea
Direct recommendation: weigh the actual filled water once.
Applies to: Everyday Spring sencha 2026 / beginner green tea in a setup close to ceramic kyusu.
Evidence: firsthand experience with beginner green tea in a different vessel.
Change: weigh the actual filled water once.
Expected effect: your ratio will become comparable with other reports.
Observed result: not tested on this exact setup yet.
Limitations: My result is from a small number of sessions, so treat it as evidence rather than law.
Commercial relationship: none.

[Baghar]

Inference
Direct recommendation: repeat the session with two preheated-cup transfers.
Applies to: Everyday Spring sencha 2026 / beginner green tea in a setup close to ceramic kyusu.
Evidence: inference from the posted parameters, not a test of this exact tea.
Change: repeat the session with two preheated-cup transfers.
Expected effect: the cup should move toward repeatable low-tech cooling method if that variable is causal.
Observed result: not tested on this exact setup yet.
Limitations: My result is from a small number of sessions, so treat it as evidence rather than law.
Commercial relationship: none.

[Cleaver]

Comparable tea
Direct recommendation: repeat the same recipe on a second day.
Applies to: Everyday Spring sencha 2026 / beginner green tea in a setup close to ceramic kyusu.
Evidence: firsthand use of a comparable beginner green tea with similar parameters.
Change: repeat the same recipe on a second day.
Expected effect: a repeated result should be easier to trust.
Observed result: not tested on this exact setup yet.
Limitations: This may not transfer to a heavier roast or a very different vessel size.
Commercial relationship: none.

[Author]

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