Does the taste of coffee change over time?

Have you ever had the feeling that when you drink coffee, at first it tastes the same, but after a while it changes .I had this experience. When I made the cup, I felt a little bitter at the first sip, then I put down the cup. When it was cold ,drink it again, I suddenly felt a lively acidity.This change have sevral reasons.

One,temperature

This is similar to the way I mentioned before, coffee is cold and drunk.So why had such a difference at different temperatures?

In fact, there is a scientific basis . The sour, bitter and sweet taste we can experience is different at different temperatures.When the temperature is low, bitterness and sweetness will be reduced and the perception of acidity will be increased.So, when I drink that cool cup of coffee, I get a lively acidity, which is usually at first acidity.

second. decided by coffe itself

Coffee contains many ingredients that are easy to change, and if the brewing temperature is high, the change will happen constantly.

The influence of oxygen

Oxygen gets into the coffee, and it causes the coffee to change.So what we find is that when you buy a bag of coffee beans, there's a vent in the package, and I always thought it was for convenience that we could smell the coffee beans.

Actually, this is a one-way exhaust valve, so you can only exhaust from the inside out, and the outside air can't get into the bag.When roasted, the beans release carbon dioxide, which goes out of the bag along with oxygen, water, and so on through a one-way exhaust valve.

So the taste of coffee changes over time, and if you don't like the change, drink the brew as soon as possible.If you want to experiment with the flavor of cold brew coffee, just wait when it cold

and today i will introduce  cold brew coffe

Before we look into its history, what exactly is cold brew coffee? 

The process of making cold brew coffee is unique-- and not to be confused with iced coffee, which is simply regular coffee served over ice. What makes cold brew coffee so delicious is the amount of time it takes to brew. is steeped in cold water; it is left here for as long as possible, with a minimum steep time of 12 hours. The grounds are then filtered out, leaving a concentrate which can be served in various ways. What makes cold brew coffee special is the flavor which results from allowing the coffee to brew for so long: the oils, sugar, and caffeine are chemically extracted in a distinctive way. Despite the differences in how it is made, cold brew maintains all of the standard benefits of regular coffee.

The above is the tast of the hot coffe and cold brew coffe, now the cold brew coffe is hot hot,especially with glass bottle, it is much convenient to take,you can drink anyway ,not just in coffe shop

we have the whole size:50ml,100ml,200ml,250 ml,350ml and 500ml,the matched lid have metal and plastic,also have normal and tamperoof lid,if you need cusomize, can also notice me