nx_soda_flavor.nx

nx_soda_flavor.nx -- CRAFT-SODA rung F0: the FLAVOR-DESIGN model. The operator's curiosity point (3): "the best flavoring like a crystallized lemon/lime so it's SMOOTH + EVEN + STRONG WITHOUT sugar or other things hiding it." The grounded answer (WebSearch 2026-07-10): - CITRIC acid = sharp/pointy/immediate sourness (a stronger acid -> a bigger [H+] spike); MALIC acid = rounded/smooth/lingering (a weaker acid). BLENDING them is the craft smoothness knob. - a WHISPER of sweet AROMA (vanilla/ester) triggers olfactory-gustatory synergism -> the brain perceives roundness/sweetness from aroma ALONE, no sugar, and aroma ENHANCES clarity rather than masking it. - SUGAR mutes + hides flavor; the operator forbids it. This organ composes two others -- nx_taste_transduce (the sour receptor Hill curve) and nx_soda_carbonation (carbonic-acid [H+]) -- so perceived sourness is the real receptor response to the COMBINED acid+CO2 stimulus, not a naive sum. Everything integer-exact, no float. MEASURED EXCEEDS (gate-checked, see nx_soda_flavor_test): - MALIC IS SMOOTHER: at equal molarity malic yields strictly less [H+] (a softer sour) than citric -- why it rounds a blend. - THE BLEND BEATS EITHER ALONE: a ~50:50 citric:malic blend scores higher roundness than pure citric (harsh/pointy) OR pure malic (flat). - AROMA ROUNDS WITHOUT SUGAR: a whisper of sweet aroma raises roundness while clarity stays perfect (sugar = 0). - CARBONATION IS A FLAVOR LEVER: adding CO2 raises BOTH perceived sourness and aroma-lifted intensity. - LIAR-KILL: a recipe that reaches for SUGAR to fake smoothness is rejected as dishonest -- "nothing hiding it" enforced by construction (sugar earns ZERO roundness credit; it only mutes clarity). genealogy_id: nishi_taste_transduce_2026 + citric_malic_acidulant_profiles + olfactory_gustatory_synergism + nishi_soda_carbonation_2026