Organic food spoils faster, due to lack of preservatives, right/ So if one decides to "Go Organic", do they need to shop every other day to keep unrotton food in the house?

No.

In fact, the pasteurization process used on organic milk and dairy products causes them to last LONGER than conventional products.

Organic fruits, vegetables, meat, eggs, canned products, frozen products, and dry goods do not differ significantly in their shelf life compared to conventional products.

Just pay attention to poll dates and you'll be fine.

You are kind of missing the point of "organic" it's not about preservatives, it's about pesticides. Preservatives are usually used in processed canned or boxed foods. Yes they are sometimes used on fresh produce as well. Certain fruits and vegetables will absorb pesticide residue more than others. Anti Organic people like to argue that there is no "evidence" that Organic is healthier. But the reason is it's nearly impossible to devise a long term human health study. Does it make sense to consume pesticide when you don't have to? A lot of Organic Food is grown locally so it doesn't have to ship as far. There is not a good way to tell how long a tomato has been on your grocers shelf. So your statement isn't really valid. Eat the best food you can. I buy food about once every 10 days.

Organic food lasts longer. What you don't realize is that produce that's trucked in to your grocery store from across the country has been gased, treated, sprayed, waxed - you name it. It's already decomposing when you buy it. Go organic, buy the green bags - use it fresh. Why would you want to buy something and keep it in the refrigerator for two weeks anyway. Buy what you need.

Yes, you may want to shop frequently. Also green bags work!