The high temperatures of canning, cooking, and pasteurizing microbes, and the low temperatures of freezing and refrigeration microbes.

Hey! I’m probably way too excited to answer this question, but who cares. I think bacteria is so cool.

This is a very important piece of food safety! High temperatures KILL microbes. The whole process creates an environment that makes it very difficult for bacteria/microorganisms to grow. Milk straight out of the cow contains a lot of bacteria that can be harmful, and this is why the process of pasteurization is really important. Raw milk can cause food-borne illness with listeria monocytogenes, which can pose a serious health risk, causing serious infections that can lead to deadly illnesses like meningitis. Pasteurization increases the shelf life and creates a clean product that won’t cause sickness in consumers.

Low temperatures will not only keep the food from spoiling and allow us to save leftover food, but also slow microbial growth. There are lots of things to take into consideration for safely cooling and storing food. Food should not be left out for an extended period of time at room temperature before it is refrigerated or freezes. This can greatly increase the risk for harmful microorganisms to grow, thus increasing the risk for food-borne illness.

Hopefully this does a little more than answer your question. It’s so important to understand why we use these two methods.

Science27 of the most iconic, jaw-dropping photos of the earth and the moon from spacedave mosher  oct 1, 2018, 11: 13 am etnasa/flickrapollo 11 astronauts took this photo of earth on july 20, 1969.from the ground, earth looks like a boundless fertile plain that beckons to be explored and exploited.but astronauts would beg -  and even plead  - to differ."you realize that people often say, 'i hope to go to heaven when i die,'" jim lovell, an astronaut who flew on the apollo 8 and apollo 13 missions to the moon, previously  told business insider. "in reality, if you think about it, you go to heaven when you're born."lovell has seen first-hand that we live on a tiny rock hopelessly lost in the void. he's also quick to tell you it's the only one we've got - a  fragile spaceship  for more than 7 billion people: "you arrive on a planet that has the proper mass, has the gravity to contain water and an atmosphere, which are the very essentials for life. and you arrive on this planet that's orbiting a star just at the right distance - not too far to be too cold, or too close to be too hot - and just at the right distance to absorb that star's energy and then, with that energy, cause life to evolve here in the first place. in reality, you know, god has really given us a stage, just looking at where we were around the moon, a stage on which we perform. and how that play turns out is up to us, i guess."humanity has recorded photos of earth from hundreds, thousands, millions, and even billions of miles away, some of them taken by lovell himself.these images not only scientists study our dynamic world, but also understand how a habitable planet looks from afar, which aids the search for  more worlds. most importantly, however, the images underscore our peculiar existence on  a mote of cosmic dust.take a moment to ponder 27 of the most arresting images of earth that humankind has ever captured from space.a