Hayato notices that Akane seems down, and suspects she's planning to quit. When he asks her about it, she responds with a defeated look, so he asks her to teach him how his grandma made coffee. His coldness makes Akane wonder what "family" truly is.
Any longer than that, 
and it'll taste sour and wrong.
إذا انتظرتِ فترة أطول، سيُمسي
مذاقها حامضاً وغير مضبوط
Au-delà, le café prendra
un goût amer ou désagréable.
Un tempo più lungo produrrà un sapore 
 più amaro e sgradevole.
Se demorar mais que isso, eles ficam
amargos e o sabor fica fora do ponto.
Передержишь,
и будет горько и невкусно.