腐ったコーヒー

Drinking rotten coffee got upset my stomach.

I always have 1000ml plastic bottles of coffee in my car, then when I’m leaving for our office, I usually take it and “Calorie mate” as a breakfast.
I have that habit.
But, I go to bed early and get up early lately, I take breakfast before leave from home in the morning, so I have left the bottle in my car for several week.

Then, it had happened that I could not get up by usual time of leaving home, so I got in my car and drunk the bottle of coffee that left in my car.

When I drunk it, I felt sweetness more than acidity, nonetheless, it was black coffee.
I thought at that time “rotten coffee?”, but I drunk the rest, because I have the habit that I took in caffeine in the morning.
In the end, it got upset my stomach.

I thought I should not have drunk that.
It had been rotten.

I thought it is bad, but I can’t break my habit.

Anyway, it was natulary to go bad, because it was left the bottle in my car for several week.

So, I was in the toilet most of the day.

I thought I will be careful.

If it was winter, drinking the coffee wouldn’t get upset my stomach.
I thought it is bad to leave the bottle of coffee in the car for the summer.