Should I use the coffee in the freezer?

Question: Should I be the coffee in the freezer?

My roommate insists that storing our coffee in the freezer is fine, but I've heard it's bad for the taste.

Answer:

It is generally regarded as safe, but not for the storage of coffee when stored in the freezer in a vacuum-tight package. However, the coffee is stored in a vacuum-tight before higher packing package that is not as good as freshly roasted coffee after it is frozen nothing at its maximum freshness before freezing, and certainly.

It is generally not advisable to store open packets of coffee in the freezer. Instead, I suggest buying or coffee, if you store your coffee in a dark pantry, away from moisture and odors ,, turn need the heat.

However, there is some controversy about the claim that coffee should not be stored in a freezer, as in other (paraphrased) question reader described below:

Question: Many websites say that coffee is not good for storing coffee in the freezer. I agree with many of the common demands:

1. "The freezer is a wet location." The air in the freezer is dry. The vapor pressure of water and ice is much lower than the temperature at -20 ° C hot. You can open the can of cold coffee sitting in the kitchen condensation in the coffee can provide produced, but can be avoided.
2. "Freezers have odors." Freezers, due to the low temperatures and low vapor pressures and malodorous substances usually do not feel well (unlike refrigerators). However, the freezer is a closed and coffee should be stored in a closed container space.
3. "Freeze-thaw damage essential oils volatile coffee flavor." Store at -20 ° C must therefore keep the essential oils in the coffee, instead of evaporating it, and the temperature drops speed must oxidation reactions that destroy the flavor molecules remove essential.

Can you further information on these charges?

Answer: You have some great points! To the best of my knowledge this is why many coffees make these claims about storing coffee in the freezer:

1. Freezers are not always wet, but they can get wet.

   Although even freeze moisture does not hold, most refrigerators and freezers are transfers of air between the freezer and refrigerator. Although the air is usually at the correct temperature to (particularly for longer periods of time when they come to the bag of summer berries in the way, way back) to prevent, the formation of steam, opening and closing the refrigerator door vapor and temperature fluctuations and exchange of air between the fridge and freezer (minor).

   For more information on this, stressed About.com guide to home Mariette Mifflin particular reference to issues related to air freezes the location of Whirlpool available. Mariette said: "The level of air temperature and humidity in the freezer will be different, depending on the type of freezer, design and efficiency."

   Are in wet and freezing equipment not sealed coffee beans absorb moisture easily, because they are hydrophilic (water-loving). If they do, they may also smells because suck ...



2. Freezers are retaining odors.

   The characteristic smell of "freezer burn" is an excellent example of a freezer smell adding frozen foods. As a site Whirlpool says, "the food in the refrigerator and freezer can lose its flavor and even the taste of other foods that are stored, such as fish and onions. Perhaps you need both parts of the food clean Ensure eliminate odors. packaging or food odors in Store sealed odor control recurring container. "

   Mariette was added. "When it comes to storing food in the freezer (chest or upright), even if sealed food smells good, I've always noticed and sometimes with a certain frozen foods, for example, if associated I make my annual meat pies, which are well sealed in Ziploc bags, but when I open the door, I can smell the spices immediately ... until the meatballs are all parties. "



3. Freezing and thawing can damage the essential oils of coffee.

   I have no scientific proof, but I know that freezing and thawing of foods several times almost never a good idea because it the taste and aroma of influence (and texture, but has little to do with the discussion).

   Further, the heating and cooling of food moisture are generally repeated in the food and makes it possible to condense or evaporate, depending on the temperature. In Pu-erh tea, the difference between hot and cold is desirable because it causes a natural fermentation, which adds depth to the flavor of the tea. This is not the same as the temperature range, in general do not include freezing, but it is an example of how the changes in the temperature can change the taste and flavor of a food or beverage.

   I can imagine (though I have no proof!) That freezing and thawing of coffee to significant changes in the development of oil and water in the coffee, and perhaps encourage the oils of the seed surface move during freezing, then, coffee disperse when thawed.

   But my main concern in the freezing and thawing of coffee beans, which can be very porous and temperature change moisture inside the bag in the grains are spread by unwanted odors.

Mariette also said: "When it comes to the freezing moisture, suppose that, depending on the features and design of freezing, air flow or lack of manual or automatic defrost, vary effectively sealing / insulation, etc. Some expensive refrigerators have a better moisture control and some independent air flow - so there is no transfer, I would say that it depends on your fridge with freezer Special "..