I usually drink water or tea, but sometimes I feel like a refreshing carbonated drink. However, I am usually satisfied with just one sip and put it in the refrigerator.

I forget about it, and when I find it the next day, I can't stand the loneliness of thinking, "Oh, this is from yesterday... I wonder if the carbonation has gone out..." So I decided to try using this item.

I want to drink carbonated drinks to the last drop!
I want to drink carbonated drinks to the last drop!

This cap can be used for both 500ml (16.91us fl oz) and 1.5L bottles.

Enthusiasm is awfully hot.
Enthusiasm is awfully hot.

First, let's try it with cola, a typical (?) carbonated beverage that I suddenly feel like drinking. I'm going to try it with cola, a typical carbonated drink that I suddenly feel like drinking.

Somewhere along the line, I couldn't drink it all at once.
Somewhere along the line, I couldn't drink it all at once.

The cap is divided into two parts: the fixed cap is attached to the bottle, and the pump part is inserted from the top. Move the pump up and down to feed air into the bottle, and stop when the bottle is slightly hardened. Stop when the bottle is slightly hardened and store it upright.

Carbonated long-life cap
Carbonated long-life cap

Divided into pump parts (left) and fixing cap (right)
Divided into pump parts (left) and fixing cap (right)

Pump until slightly hardened! Pump!
Pump until slightly hardened! Pump!

After one day (24 hours), when you remove the cap, you will hear a nice "pshhhh" sound. When I poured it into a glass, I found the carbonation to be very lively! It is the same cola as when I first drank it.

This is the anti-aging of cola.
This is the anti-aging of cola.

I pumped the bottle again to pump air into the bottle and let it sit for a little while longer. When I drank it 48 hours after the bottle was opened, the bubbles and the gulp were still there, but they were weaker than the first time, and I could taste the sweetness that is characteristic of a carbonated drink that has lost its energy. It seems like it would be good to finish it at this point.

After 2 days, carbonation has weakened slightly
After 2 days, carbonation has weakened slightly

Another thing that caught my attention was a beverage labeled "slightly carbonated. This delicate gulp of the drink disappears as soon as you open it, doesn't it?

Can you even protect the fragility of microcarbonation?
Can you even protect the fragility of microcarbonation?

I changed the cap to a carbonated Nagamochi cap, and 24 hours later, I could still enjoy the same taste and refreshing sensation as when I opened the bottle. I inadvertently drank it all up at this point and did not test it after that.

It should be noted that the freshness of the carbonation after one day is almost the same as the first time, and there may be room for further testing in the case of 1.5L bottles and the time it takes for the carbonation to completely dissipate, but at any rate, with this product, we can enjoy carbonated drinks more than ever! The manufacturer's price is 464 yen (tax included).

Does it sound healthy because you don't have to drink it all at once?
Does it sound healthy because you don't have to drink it all at once?